CHANGES IN R 3.0.3| NEWS | R Documentation |
CHANGES IN R 3.0.3 On Windows there is support for making ‘.texi’ manuals
using texinfo 5.0 or later: the setting is in file
‘src/gnuwin32/MkRules.dist’.
A packaging of the Perl script and modules for texinfo
5.2 has been made available at
http://www.stats.ox.ac.uk/pub/Rtools/.
write.table() now handles matrices of
2^31 or more elements, for those with large amounts
of patience and disc space.
There is a new function, La_version(), to report the
version of LAPACK in use.
The HTML version of ‘An Introduction to R’ now has links to PNG versions of the figures.
There is some support to produce manuals in ebook formats. (See ‘doc/manual/Makefile’. Suggested by Mauro Cavalcanti.)
On a Unix-alike Sys.timezone() returns NA if
the environment variable TZ is unset, to distinguish it from
an empty string which on some OSes means the UTC time zone.
The backtick may now be escaped in strings, to allow names
containing them to be constructed, e.g. `\``. (PR#15621)
read.table(), readLines() and scan()
now warn when an embedded nul is found in the input. (Related to
PR#15625 which was puzzled by the behaviour in this unsupported
case.)
(Windows only.) file.symlink() works around the
undocumented restriction of the Windows system call to
backslashes. (Wish of PR#15631.)
KalmanForecast(fast = FALSE) is now the default, and
the help contains an example of how fast = TRUE can be used
in this version. (The usage will change in 3.1.0.)
strptime() now checks the locale only when
locale-specific formats are used and caches the locale in use:
this can halve the time taken on OSes with slow system
functions (e.g. OS X).
strptime() and the format() methods for
classes "POSIXct", "POSIXlt" and "Date"
recognize strings with marked encodings: this allows, for example,
UTF-8 French month names to be read on (French) Windows.
iconv(to = "utf8") is now accepted on all platforms
(some implementations did already, but GNU libiconv did not:
however converted strings were not marked as being in UTF-8). The
official name, "UTF-8" is still preferred.
available.packages() is better protected against
corrupt metadata files. (A recurring problem with Debian package
shogun-r: PR#14713.)
Finalizers are marked to be run at garbage collection, but
run only at a somewhat safer later time (when interrupts are
checked). This circumvents some problems with finalizers running
arbitrary code during garbage collection (the known instances being
running options() and (C-level) path.expand()
re-entrantly).
The included version of PCRE has been updated to 8.34. This fixes bugs and makes the behaviour closer to Perl 5.18. In particular, the concept of ‘space’ includes VT and hence agrees with POSIX's.
The new field SysDataCompression in the ‘DESCRIPTION’ file allows user control over the compression used for ‘sysdata.rda’ objects in the lazy-load database.
install.packages(dependencies = value) for value =
NA (the default) or value = TRUE omits packages only in
LinkingTo for binary package installs.
The long undocumented remapping of rround() to
Rf_fround() in header ‘Rmath.h’ is now formally
deprecated: use fround() directly.
Remapping of prec() and trunc() in the
‘Rmath.h’ header has been disabled in C++ code (it has caused
breakage with libc++ headers).
getParseData() truncated the imaginary part of
complex number constants. (Reported by Yihui Xie.)
dbeta(x, a, b) with a or b within a
factor of 2 of the largest representable number could
infinite-loop. (Reported by Ioannis Kosmidis.)
provideDimnames() failed for arrays with a 0
dimension. (PR#15465)
rbind() and cbind() did not handle
list objects correctly. (PR#15468)
replayPlot() now checks if it is replaying a plot
from the same session.
rasterImage() and grid.raster() now give
error on an empty (zero-length) raster. (Reported by Ben North.)
plot.lm() would sometimes scramble the labels
in plot type 5. (PR#15458 and PR#14837)
min() did not handle NA_character_ values
properly. (Reported by Magnus Thor Torfason.)
(Windows only.) readRegistry() would duplicate
default values for keys. (PR#15455)
str(..., strict.width = "cut") did not handle
it properly when more than one line needed to be cut. (Reported
by Gerrit Eichner.)
Removing subclass back-references when S4 classes were removed or their namespace unloaded had several bugs (e.g., PR#15481).
aggregate() could fail when there were too many
levels present in the by argument. (PR#15004)
namespaceImportFrom() needed to detect primitive
functions when checking for duplicated imports (reported by
Karl Forner).
getGraphicsEvent() did not exit when a user closed
the graphics window. (PR#15208)
Errors in vignettes were not always captured and displayed properly. (PR#15495)
contour() could fail when dealing with extremely
small z values. (PR#15454)
Several functions did not handle zero-length vectors properly,
including browseEnv(), format(), gl(),
relist() and summary.data.frame(). (E.g., PR#15499)
Sweave() did not restore the R output to the
console if it was interrupted by a user in the middle of evaluating
a code chunk. (Reported by Michael Sumner.)
Fake installs of packages with vignettes work again.
Illegal characters in the input caused parse()
(and thus source()) to segfault. (PR#15518)
The nonsensical use of nmax = 1 in
duplicated() or unique() is now silently ignored.
qcauchy(p, *) is now fully accurate even when p is
very close to 1. (PR#15521)
The validmu() and valideta() functions in the
standard glm() families now also report non-finite values,
rather than failing.
Saved vignette results (in a ‘.Rout.save’ file) were
not being compared to the new ones during R CMD check.
Double-clicking outside of the list box (e.g. on the scrollbar)
of a Tk listbox widget generated by tk_select.list() no
longer causes the window to close. (PR#15407)
Improved handling of edge cases in
parallel::splitindices(). (PR#15552)
HTML display of results from help.search() and
?? sometimes contained badly constructed links.
c() and related functions such as unlist()
converted raw vectors to invalid logical vectors. (PR#15535)
(Windows only) When a call to system2() specified
one of stdin, stdout or stderr to be a file,
but the command was not found (e.g. it contained its arguments,
or the program was not on the PATH), it left the file open
and unusable until R terminated. (Reported by Mathew McLean.)
The bmp() device was not recording res = NA
correctly: it is now recorded as 72 ppi.
Several potential problems with compiler-specific behaviour
have been identified using the ‘Undefined Behaviour
Sanitizer’ in conjunction with the clang compiler.
hcl() now honours NA inputs (previously they
were mapped to black).
Some translations in base packages were being looked up in the main catalog rather than that for the package.
As a result of the 3.0.2 change about ‘the last
second before the epoch’, most conversions which should have given
NA returned that time. (The platforms affected include
Linux and OS X, but not Windows nor Solaris.)
rowsum() has more support for matrices and dataframes
with 2^31 or more elements. (PR#15587)
predict(<lm object>, interval = "confidence", scale =
<something>) now works. (PR#15564)
The bug fix in 3.0.2 for PR#15411 was too aggressive, and sometimes removed spaces that should not have been removed. (PR#15583)
Running R code in a tcltk callback failed to set the busy flag, which will be needed to tell OS X not to ‘App Nap’.
The code for date-times before 1902 assumed that the offset from GMT in 1902 was a whole number of minutes: that was not true of Paris (as recorded on some platforms).
Using Sys.setlocale to set LC_NUMERIC to
"C" (to restore the sane behavior) no longer gives a
warning.
deparse() now deparses complex vectors in a way that
re-parses to the original values. (PR#15534, patch based on code
submitted by Alex Bertram.)
In some extreme cases (more than 10^15)
integer inputs to dpqrxxx() functions might have been
rounded up by one (with a warning about being non-integer).
(PR#15624)
Plotting symbol pch = 14 had the triangle upside down
on some devices (typically screen devices). The triangle is
supposed to be point up. (Reported by Bill Venables.)
getSrcref() did not work on method definitions if
rematchDefinition() had been used.
KalmanForecast(fast = FALSE) reported a (harmless)
stack imbalance.
The count of observations used by KalmanRun() did not
take missing values into account.
In locales where the abbreviated name of one month is a
partial match for the full name of a later one, the %B
format in strptime() could fail. An example was French on
OS X, where juin is abbreviated to jui and partially
matches juillet. Similarly for weekday names.
pbeta(x, a, b, log.p = TRUE) sometimes underflowed to
zero for very small and very differently sized a, b.
(PR#15641)
approx() and approxfun() now handle infinite
values with the "constant" method. (PR#15655)
stripchart() again respects reversed limits in
xlim and ylim. (PR#15664)
CHANGES IN R 3.0.2The ‘NEWS’ files have been re-organized.
This file contains news for R >= 3.0.0: news for the 0.x.y, 1.x.y and 2.x.y releases is in files ‘NEWS.0’, ‘NEWS.1’ and ‘NEWS.2’. The latter files are now installed when R is installed. An HTML version of news from 2.10.0 to 2.15.3 is available as ‘doc/html/NEWS.2.html’.
sum() for integer arguments now uses an integer
accumulator of at least 64 bits and so will be more accurate in
the very rare case that a cumulative sum exceeds
2^53 (necessarily summing more than 4 million
elements).
The example() and tools::Rd2ex() functions now
have parameters to allow them to ignore \dontrun markup in
examples. (Suggested by Peter Solymos.)
str(x) is considerably faster for very large lists,
or factors with 100,000 levels, the latter as in PR#15337.
col2rgb() now converts factors to character strings
not integer codes (suggested by Bryan Hanson).
tail(warnings()) now works, via the new `[`
method.
There is now support for the LaTeX style file ‘zi4.sty’ which has in some distributions replaced ‘inconsolata.sty’.
unlist(x) now typically returns all non-list
xs unchanged, not just the “vector” ones.
Consequently, format(lst) now also works when the list
lst has non-vector elements.
The tools::getVignetteInfo() function has been added
to give information about installed vignettes.
New assertCondition(), etc. utilities in tools, useful
for testing.
Profiling now records non-inlined calls from byte-compiled
code to BUILTIN functions.
Various functions in stats and elsewhere that use
non-standard evaluation are now more careful to follow the
namespace scoping rules. E.g. stats::lm() can now find
stats::model.frame() even if stats is not on the
search path or if some package defines a function of that name.
If an invalid/corrupt .Random.seed object is
encountered in the workspace it is ignored with a warning rather
than giving an error. (This allows R itself to rely on a working
RNG, e.g. to choose a random port.)
seq() and seq.int() give more explicit error
messages if called with invalid (e.g. NaN) inputs.
When parse() finds a syntax error, it now makes
partial parse information available up to the location of the
error. (Request of Reijo Sund.)
Methods invoked by NextMethod() had a different
dynamic parent to the generic. This was causing trouble where S3
methods invoked via lazy evaluation could lose track of their
generic. (PR#15267)
Code for the negative binomial distribution now treats the case
size == 0 as a one-point distribution at zero.
abbreviate() handles without warning non-ASCII input
strings which require no abbreviation.
read.dcf() no longer has a limit of 8191 bytes per
line. (Wish of PR#15250.)
formatC(x) no longer copies the class of x to
the result, to avoid misuse creating invalid objects as in
PR#15303. A warning is given if a class is discarded.
Dataset npk has been copied from MASS to
allow more tests to be run without recommended packages being
installed.
The initialization of the regression coefficients for
non-degenerate differenced models in arima() has been
changed and in some examples avoids a local maximum. (PR#15396)
termplot() now has an argument transform.x
to control the display of individual terms in the plot.
(PR#15329)
format() now supports digits = 0, to
display nsmall decimal places.
There is a new read-only par() parameter called
"page", which returns a logical value indicating whether
the next plot.new() call will start a new page.
Processing Sweave and Rd documents to PDF now renders backticks and single quotes better in several instances, including in \code and \samp expressions.
utils::modifyList() gets a new argument keep.null
allowing NULL components in the replacement to be retained,
instead of causing corresponding components to be deleted.
tools::pkgVignettes() gains argument check;
if set to TRUE, it will warn when it appears a vignette requests
a non-existent vignette engine.
R CMD check --as-cran checks the line widths in
usage and examples sections of the package Rd files.
R CMD check --as-cran now implies --timings.
R CMD check looks for command gfile if a
suitable file is not found. (Although file is
not from GNU, OpenCSW on Solaris installs it as gfile.)
R CMD build (with the internal tar) checks
the permissions of ‘configure’ and ‘cleanup’ files and
adds execute permission to the recorded permissions for these
files if needed, with a warning. This is useful on OSes and file
systems which do not support execute permissions (notably, on
Windows).
R CMD build now weaves and tangles all vignettes,
so suggested packages are not required during package installation
if the source tarball was prepared with current
R CMD build.
checkFF() (used by R CMD check) does a
better job of detecting calls from other packages, including not
reporting those where a function has been copied from another
namespace (e.g. as a default method). It now reports calls where
.NAME is a symbol registered in another package.
On Unix-alike systems, R CMD INSTALL now installs packages
group writably whenever the library (lib.loc) is group
writable. Hence, update.packages() works for other group
members (suggested originally and from a patch by Dirk Eddelbuettel).
R CMD javareconf now supports the use of symbolic
links for JAVA_HOME on platforms which have
realpath. So it is now possible to
use
R CMD javareconf JAVA_HOME=/usr/lib/jvm/java-1.7.0on a Linux system and record that value rather than the frequently-changing full path such as ‘/usr/lib/jvm/java-1.7.0-openjdk-1.7.0.25.x86_64’.
(Windows only.) Rscript -e requires a non-empty
argument for consistency with Unix versions of R. (Also
Rterm -e and R -e.)
R CMD check does more thorough checking of
declared packages and namespaces. It reports
packages declared in more than one of the Depends, Imports, Suggests and Enhances fields of the ‘DESCRIPTION’ file.
namespaces declared in Imports but not
imported from, neither in the ‘NAMESPACE’ file nor using
the :: nor ::: operators.
packages which are used in library() or
requires() calls in the R code but were already put on
the search path via Depends.
packages declared in Depends not imported via the ‘NAMESPACE’ file (except the standard packages). Objects used from Depends packages should be imported to avoid conflicts and to allow correct operation when the namespace is loaded but not attached.
objects imported via ::: calls where
:: would do.
objects imported by :: which are not exported.
objects imported by ::: calls which do not exist.
See ‘Writing R Extensions’ for good practice.
R CMD check optionally checks for non-standard
top-level files and directories (which are often mistakes): this
is enabled for --as-cran.
LaTeX style file upquote.sty is no longer included
(the version was several years old): it is no longer used in R.
A much later version is commonly included in LaTeX distributions
but does not play well with the ae fonts which are the
default for Sweave vignettes.
R CMD build makes more use of the ‘build’
sub-directory of package sources, for example to record
information about the vignettes.
R CMD check analyses ::: calls.
The macros used for the texinfo manuals have been changed to
work better with the incompatible changes made in texinfo
5.x.
The minimum version for a system xz library is now
5.0.3 (was 4.999). This is in part to avoid 5.0.2, which can
compress in ways other versions cannot decompress.
The included version of PCRE has been updated to 8.33.
The included version of zlib has been updated to
1.2.8, a bug-fix release.
The included version of xz utils's liblzma has been
updated to 5.0.5.
Since javareconf (see above) is used when R is
installed, a stable link for JAVA_HOME can be supplied then.
Configuring with --disable-byte-compilation will override the ‘DESCRIPTION’ files of recommended packages, which typically require byte-compilation.
More of the installation and checking process will work even
when TMPDIR is set to a path containing spaces, but this is
not recommended and external software (such as
texi2dvi) may fail.
Installation is aborted immediately if a LinkingTo
package is not installed.
R CMD INSTALL has a new option
--no-byte-compile which will override a ByteCompile
field in the package's ‘DESCRIPTION’ file.
License BSD is deprecated: use BSD_3_clause or BSD_2_clause instead.
License X11 is deprecated: use MIT or BSD_2_clause instead.
Version requirements for LinkingTo packages are now
recognized: they are checked at installation. (Fields with
version requirements were previously silently ignored.)
The limit of 500 S3method entries in a
NAMESPACE file has been removed.
The default ‘version’ of Bioconductor for its packages has been changed to the upcoming 2.13, but this can be set by the environment variable R_BIOC_VERSION, e.g. in file ‘Renviron.site’.
‘Rdefines.h’ has been tweaked so it can be included in C++ code after ‘R_ext/Boolean.h’ (which is included by ‘R.h’).
Note that ‘Rdefines.h’ is not kept up-to-date, and ‘Rinternals.h’ is preferred for new code.
eval and applyClosure are now protected
against package code supplying an invalid rho.
The unused namespace argument to
package.skeleton() is now formally deprecated and will be
removed in R 3.1.0.
plclust() is deprecated: use the plot() method
for class "hclust" instead.
Functions readNEWS() and checkNEWS() in
package tools are deprecated (and they have not worked with
current ‘NEWS’ files for a long time).
‘An Introduction to R’ has a new chapter on using R as a scripting language including interacting with the OS.
help.request() could not determine the current version
of R on CRAN. (PR#15241)
On Windows, file.info() failed on root directories unless
the path was terminated with an explicit ".". (PR#15302)
The regmatches<-() replacement function mishandled
results coming from regexpr(). (PR#15311)
The help for setClass() and
representation() still suggested the deprecated argument
representation=. (PR#15312)
R CMD config failed in an installed build of R
3.0.1 (only) when a sub-architecture was used. (Reported by
Berwin Turlach.)
On Windows, the installer modified the ‘etc/Rconsole’ and ‘etc/Rprofile.site’ files even when default options were chosen, so the MD5 sums did not refer to the installed versions. (Reported by Tal Galili.)
plot(hclust(), cex =) respects cex again
(and possibly others similarly). (Reported by Peter Langfelder.)
If multiple packages were checked by R CMD check,
and one was written for a different OS, it would set
--no-install for all following packages as well as
itself.
qr.coef() and related functions did not properly coerce
real vectors to complex when necessary. (PR#15332)
ftable(a) now fixes up empty dimnames such
that the result is printable.
package.skeleton() was not starting its search for
function objects in the correct place if environment was
supplied. (Reported by Karl Forner.)
Parsing code was changing the length field of vectors and confusing the memory manager. (PR#15345)
The Fortran routine ZHER2K in the reference BLAS
had a comment-out bug in two places.
This caused trouble with eigen() for Hermitian matrices.
(PR#15345 and report from Robin Hankin)
vignette() and browseVignettes() did not
display non-Sweave vignettes properly.
Two warning/error messages have been corrected:
the (optional) warning produced by a partial name match
with a pairlist, the error message from a zero-length argument to
the : operator. (Found by Radford Neal; PR#15358,
PR#15356)
svd() returned NULL rather than omitting
components as documented. (Found by Radford Neal; PR#15360)
mclapply() and mcparallel() with
silent = TRUE could break a process that uses
stdout output
unguarded against broken pipes (e.g., zip will fail
silently). To work around such issues, they now replace
stdout with a descriptor pointed to ‘/dev/null’
instead. For this purpose, internal closeStdout and
closeStderr functions have gained the to.null flag.
log(), signif() and round() now raise an
error if a single named argument is not named x. (PR#15361)
deparse() now deparses raw vectors in a form that
is syntactically correct. (PR#15369)
The jpeg driver in Sweave created a JPEG file, but gave
it a ‘.png’ extension. (PR#15370)
Deparsing of infix operators with named arguments is improved. (PR#15350)
mget(), seq.int() and numericDeriv()
did not duplicate arguments properly. (PR#15352, PR#15353,
PR#15354)
kmeans(algorithm = "Hartigan-Wong") now always stops
iterating in the QTran stage. (PR#15364).
read.dcf() re-allocated incorrectly and so could
segfault when called on a file with lines of more than 100 bytes.
On systems where mktime() does not set errno,
the last second before the epoch could not be converted from
POSIXlt to POSIXct. (Reported by Bill Dunlap.)
add1.glm() miscalculated F-statistics when df > 1. (Bill
Dunlap, PR#15386).
stem() now discards infinite inputs rather than
hanging. (PR#15376)
The parser now enforces C99 syntax for floating point
hexadecimal constants (e.g. 0x1.1p0), rather than returning
unintended values for malformed constants. (PR#15234)
model.matrix() now works with very long LHS
names (more than 500 bytes). (PR#15377)
integrate() reverts to the pre-2.12.0 behaviour: from
2.12.0 to 3.0.1 it sometimes failed to achieve the requested
tolerance and reported error estimates that were exceeded.
(PR#15219)
strptime() now handles %W fields with value
0. (PR#15915)
R is now better protected against people trying to interact with the console in startup code. (PR#15325)
Subsetting 1D arrays often lost dimnames (PR#15301).
Unary + on a logical vector did not coerce to
integer, although unary - did.
na.omit() and na.exclude() added a row
to a zero-row data frame. (PR#15399)
All the (where necessary cut-down) vignettes are installed if R was configured with --without-recommended-packages.
source() did not display filenames when reporting
syntax errors.
Syntax error reports misplaced the caret pointing out the bad token.
(Windows only) Starting R with R (instead of
Rterm or Rgui) would lose any
zero-length strings from the command line arguments. (PR#15406)
Errors in the encoding specified on the command line via
--encoding=foo were not handled properly. (PR#15405)
If x is a symbol, is.vector(x, "name") now
returns TRUE, since "name" and "symbol"
should be synonyms. (Reported by Hervé Pagès.)
R CMD rtags works on platforms (such as OS X)
with a XSI-conformant shell command echo. (PR#15231)
is.unsorted(NA) returns false as documented (rather than
NA).
R CMD LINK did not know about sub-architectures.
system() and system2() are better protected
against users who misguidedly have spaces in the temporary
directory path.
file.show() and edit() are now more likely to
work on file paths containing spaces. (Where external utilities
are used, not the norm on Windows nor in R.app which
should previously have worked.)
Packages using the methods package are more likely to work when they import it but it is not attached. (Several parts of its C code were looking for its R functions on the search path rather than in its namespace.)
lgamma(-x) is no longer NaN for very small x.
(Windows) system2() now respects specifying
stdout and stderr as files if called from
Rgui. (PR#15393)
Closing an x11() device whilst locator() or
identify() is in progress no longer hangs R. (PR#15253)
list.dirs(full.names = FALSE) was not implemented.
(PR#15170)
format() sometimes added unnecessary spaces.
(PR#15411)
all.equal(check.names = FALSE) would ignore the request
to ignore the names and would check them as attributes.
The symbol set by tools::Rd2txt_options(itemBullet=)
was not respected in some locales. (PR#15435)
mcMap() was not exported by package
parallel. (PR#15439)
plot() for TukeyHSD objects did not balance
dev.hold() and dev.flush() calls on multi-page plots.
(PR#15449)
CHANGES IN R 3.0.1chooseCRANmirror() and chooseBioCmirror() gain
an ind argument (like setRepositories()).
mcparallel has a new argument mc.interactive
which can modify the interactive flag in the child process. The
new default is FALSE which makes child processes
non-interactive by default (this prevents lock-ups due to children
waiting for interactive input).
scan() now warns when end-of-file occurs within
a quoted string.
count.fields() is now consistent with scan()
in its handling of newlines in quoted strings. Instead of
triggering an error, this results in the current line receiving
NA as the field count, with the next line getting the total
count of the two lines.
The default method of image() will plot axes of the
class of xlim and ylim (and hence of x and
y if there is a suitable range() method). Based on
a suggestion of Michael Sumner.
load() now has a verbose argument for
debugging support, to print the names of objects just before
loading them.
When loading a serialized object encounters a reference to a namespace which cannot be loaded, this is replaced by a reference to the global environment, with a warning.
pairs() gains a line.main option for title placement.
The remaining instances in which serialization to a raw vector was limited to 2GB have been unlimited on a 64-bit platform, and in most cases serialization to a vector of more than 1GB will be substantially faster.
R CMD config now make use of personal
‘Makevars’ files under ‘~/.R’ and a site file
‘Makevars.site’, in the same way as R CMD SHLIB and
R CMD INSTALL. This makes the utility more useful in
package configure scripts.
On Windows finding the personal files may require the environment variable HOME set.
The old behaviour can be obtained with the new options --no-user-files and --no-site-files.
Alternatives to the site and user customization files ‘Makevars.site’ and ‘~/.R/Makevars’ can be specified via the environment variables R_MAKEVARS_SITE and R_MAKEVARS_USER respectively. These can be used to suppress the use of the default files by setting an empty value (where possible) or a non-existent path.
sys.source() did not report error locations when
keep.source = TRUE.
as.POSIXct.numeric was coercing origin using
the tz argument and not "GMT" as documented
(PR#14973).
The active binding to assign fields in reference classes has been cleaned up to reduce dependence on the class' package environment, also fixing bug in initializing read-only fields (inspired by a report from Hadley Wickham).
str(d) no longer gives an error when names(d)
contain illegal multibyte strings (PR#15247).
Profiling of built-in functions with line.profiling=
TRUE did not record the line from which they were called.
citation(pkg) dropped the header and footer specified
in the ‘CITATION’ file (PR#15257).
Quotes were handled differently when reading the first line
and reading the rest, so read.table() misread some files
that contained quote characters (PR#15245).
cat() with sep a character vector of length
greater than one and more than one argument was using separators
inconsistently (PR#15261).
On Windows in R 3.0.0, savePlot() failed because of
an incorrect check on the argument count.
unzip(list = TRUE) returned Names as a factor
and not a character vector (as documented) for the internal method.
(Noticed by Sean O'Riordain.)
contourLines() now checks more comprehensively for
conformance of its x, y and z arguments (it
was used incorrectly in package R2G2).
Saved graphics display lists are R version-specific. Attempting to load workspaces containing them (or some other version-specific objects) aborted the load in R 3.0.0 and earlier; now it does a partial load and generates a warning instead.
In R 3.0.0, identify() and locator() did
not record information correctly, so replaying a graph (e.g. by
copying it to another device) would fail. (PR#15271)
Calling file.copy() or dirname() with the
invalid input "" (which was being used in packages, despite
not being a file path) could have caused a segfault.
dirname("") is now "" rather than "." (unless
it segfaulted).
supsmu() could read/write outside its input vectors
for very short inputs (seen in package rms for n = 4).
as.dendrogram()'s hclust method uses less
memory and hence gets considerably faster for large (n ~ 1000)
clusterings, thanks to Daniel Müllner. (PR#15174)
The return value when all workers failed from
parallel::mclapply(mc.preschedule = TRUE) was a list of
strings and not of error objects. (Spotted by Karl Forner and
Bernd Bischl.)
In R 3.0.0, when help() found multiple pages with
the same alias, the HTML display of all the selections was not
produced. (PR#15282)
splinefun(method="monoH.FC") now produces a
function with first argument named x and allows
deriv=3, as documented. (PR#15273)
summaryRprof() would only read the first
chunksize lines of an Rprof file produced with
line.profiling=TRUE. By default, this is the first 100
seconds. (PR#15288)
lsfit() produced an incorrect error message when
argument x had more columns than rows or x had a
different number of rows than y. (Spotted by Renaud Gaujoux.)
Binary operations on equal length vectors copied the class name from the second operand when the first had no class name, but did not set the object bit. (PR#15299)
The trace() method for reference generator objects
failed after those objects became function definitions.
write.table() did not check that factors were
constructed correctly, and so caused a segment fault when
writing bad ones. (PR#15300)
The internal HTTP server no longer chokes on POST requests without body. It will also pass-through other request types for custom handlers (with the method stored in Request-Method header) instead of failing.
CHANGES IN R 3.0.0Packages need to be (re-)installed under this version (3.0.0) of R.
There is a subtle change in behaviour for numeric index
values 2^31 and larger. These never used to be
legitimate and so were treated as NA, sometimes with a
warning. They are now legal for long vectors so there is no
longer a warning, and x[2^31] <- y will now extend the
vector on a 64-bit platform and give an error on a 32-bit one.
It is now possible for 64-bit builds to allocate amounts of
memory limited only by the OS. It may be wise to use OS
facilities (e.g. ulimit in a bash shell,
limit in csh), to set limits on overall memory
consumption of an R process, particularly in a multi-user
environment. A number of packages need a limit of at least 4GB of
virtual memory to load.
64-bit Windows builds of R are by default limited in memory usage to the amount of RAM installed: this limit can be changed by command-line option --max-mem-size or setting environment variable R_MAX_MEM_SIZE.
Negative numbers for colours are consistently an error: previously they were sometimes taken as transparent, sometimes mapped into the current palette and sometimes an error.
identical() has a new argument,
ignore.environment, used when comparing functions (with
default FALSE as before).
There is a new option, options(CBoundsCheck=), which
controls how .C() and .Fortran() pass arguments to
compiled code. If true (which can be enabled by setting the
environment variable R_C_BOUNDS_CHECK to yes), raw,
integer, double and complex arguments are always copied, and
checked for writing off either end of the array on return from the
compiled code (when a second copy is made). This also checks
individual elements of character vectors passed to .C().
This is not intended for routine use, but can be very helpful in finding segfaults in package code.
In layout(), the limits on the grid size have been
raised (again).
New simple provideDimnames() utility function.
Where methods for length() return a double value
which is representable as an integer (as often happens for package
Matrix), this is converted to an integer.
Matrix indexing of dataframes by two-column numeric indices is now supported for replacement as well as extraction.
setNames() now has a default for its object
argument, useful for a character result.
StructTS() has a revised additive constant in the
loglik component of the result: the previous definition is
returned as the loglik0 component. However, the help page has
always warned of a lack of comparability of log-likelihoods for
non-stationary models. (Suggested by Jouni Helske.)
The logic in aggregate.formula() has been revised.
It is now possible to use a formula stored in a variable;
previously, it had to be given explicitly in the function call.
install.packages() has a new argument quiet to
reduce the amount of output shown.
Setting an element of the graphics argument lwd to a
negative or infinite value is now an error. Lines corresponding
to elements with values NA or NaN are silently
omitted.
Previously the behaviour was device-dependent.
Setting graphical parameters cex, col,
lty, lwd and pch in par() now requires a
length-one argument. Previously some silently took the first
element of a longer vector, but not always when documented to do so.
Sys.which() when used with inputs which would be
unsafe in a shell (e.g. absolute paths containing spaces) now uses
appropriate quoting.
as.tclObj() has been extended to handle raw vectors.
Previously, it only worked in the other direction.
(Contributed by Charlie Friedemann, PR#14939.)
New functions cite() and citeNatbib() have
been added, to allow generation of in-text citations from
"bibentry" objects. A cite() function may be added
to bibstyle() environments.
A sort() method has been added for "bibentry"
objects.
The bibstyle() function now defaults to setting the
default bibliography style. The getBibstyle() function
has been added to report the name of the current default style.
scatter.smooth() now has an argument lpars to
pass arguments to lines().
pairs() has a new log argument, to allow some
or all variables to be plotted on logarithmic scale.
(In part, wish of PR#14919.)
split() gains a sep argument.
termplot() does a better job when given a model with
interactions (and no longer attempts to plot interaction terms).
The parser now incorporates code from Romain Francois'
parser package, to support more detailed computation on
the code, such as syntax highlighting, comment-based
documentation, etc. Functions getParseData() and
getParseText() access the data.
There is a new function rep_len() analogous to
rep.int() for when speed is required (and names are not).
The undocumented use rep(NULL, length.out = n) for
n > 0 (which returns NULL) now gives a warning.
demo() gains an encoding argument for those
packages with non-ASCII demos: it defaults to the package encoding
where there is one.
strwrap() converts inputs with a marked encoding to
the current locale: previously it made some attempt to pass
through as bytes inputs invalid in the current locale.
Specifying both rate and scale to
[dpqr]gamma is a warning (if they are essentially the same
value) or an error.
merge() works in more cases where the data frames
include matrices. (Wish of PR#14974.)
optimize() and uniroot() no longer use a
shared parameter object across calls. (nlm(),
nlminb() and optim() with numerical derivatives
still do, as documented.)
The all.equal() method for date-times is now
documented: times are regarded as equal (by default) if they
differ by up to 1 msec.
duplicated() and unique() gain a nmax
argument which can be used to make them much more efficient when
it is known that there are only a small number of unique entries.
This is done automatically for factors.
Functions rbinom(), rgeom(), rhyper(),
rpois(), rnbinom(), rsignrank() and
rwilcox() now return integer (not double) vectors. This
halves the storage requirements for large simulations.
sort(), sort.int() and sort.list() now
use radix sorting for factors of less than 100,000 levels when
method is not supplied. So does order() if called
with a single factor, unless na.last = NA.
diag() as used to generate a diagonal matrix has been
re-written in C for speed and less memory usage. It now forces
the result to be numeric in the case diag(x) since it is
said to have ‘zero off-diagonal entries’.
backsolve() (and forwardsolve()) are now
internal functions, for speed and support for large matrices.
More matrix algebra functions (e.g. chol() and
solve()) accept logical matrices (and coerce to numeric).
sample.int() has some support for n >= 2^31: see its help for the limitations.
A different algorithm is used for (n, size, replace = FALSE,
prob = NULL) for n > 1e7 and size <= n/2. This
is much faster and uses less memory, but does give different results.
approxfun() and splinefun() now return a
wrapper to an internal function in the stats namespace
rather than a .C() or .Call() call. This is more
likely to work if the function is saved and used in a different
session.
The functions .C(), .Call(),
.External() and .Fortran() now give an error (rather
than a warning) if called with a named first argument.
Sweave() by default now reports the locations in
the source file(s) of each chunk.
clearPushBack() is now a documented interface to a
long-existing internal call.
aspell() gains filters for R code, Debian Control
Format and message catalog files, and support for R level
dictionaries. In addition, package utils now provides
functions aspell_package_R_files() and
aspell_package_C_files() for spell checking R and C level
message strings in packages.
bibentry() gains some support for “incomplete”
entries with a crossref field.
gray() and gray.colors() finally allow
alpha to be specified.
monthplot() gains parameters to control the look of
the reference lines. (Suggestion of Ian McLeod.)
Added support for new %~% relation
(“is distributed as”) in plotmath.
domain = NA is accepted by gettext() and
ngettext(), analogously to stop() etc.
termplot() gains a new argument plot = FALSE
which returns information to allow the plots to be modified for
use as part of other plots, but does not plot them.
(Contributed by Terry Therneau, PR#15076.)
quartz.save(), formerly an undocumented part of
R.app, is now available to copy a device to a
quartz() device. dev.copy2pdf() optionally does
this for PDF output: quartz.save() defaults to PNG.
The default method of pairs() now allows
text.panel = NULL and the use of <foo>.panel = NULL
is now documented.
setRefClass() and getRefClass() now return
class generator functions, similar to setClass(), but
still with the reference fields and methods as before
(suggestion of Romain Francois).
New functions bitwNot(), bitwAnd(),
bitwOr() and bitwXor(), using the internal
interfaces previously used for classes "octmode" and
"hexmode".
Also bitwShiftL() and bitwShiftR() for shifting bits
in elements of integer vectors.
New option "deparse.cutoff" to control the deparsing
of language objects such as calls and formulae when printing.
(Suggested by a comment of Sarah Goslee.)
colors() gains an argument distinct.
New demo(colors) and demo(hclColors), with
utility functions.
list.files() (aka dir()) gains a new optional
argument no.. which allows to exclude "." and
".." from listings.
Multiple time series are also of class "matrix";
consequently, head(), e.g., is more useful.
encodeString() preserves UTF-8 marked encodings.
Thus if factor levels are marked as UTF-8 an attempt is made to
print them in UTF-8 in RGui on Windows.
readLines() and scan() (and hence
read.table()) in a UTF-8 locale now discard a UTF-8
byte-order-mark (BOM). Such BOMs are allowed but not recommended
by the Unicode Standard: however Microsoft applications can
produce them and so they are sometimes found on websites.
The encoding name "UTF-8-BOM" for a connection will
ensure that a UTF-8 BOM is discarded.
mapply(FUN, a1, ..) now also works when a1 (or
a further such argument) needs a length() method (which the
documented arguments never do). (Requested by Hervé Pagès; with a
patch.)
.onDetach() is supported as an alternative to
.Last.lib. Unlike .Last.lib, this does not need to
be exported from the package's namespace.
The srcfile argument to parse() may now be a
character string, to be used in error messages.
The format() method for ftable objects gains
a method argument, propagated to write.ftable() and
print(), allowing more compact output, notably for LaTeX
formatting, thanks to Marius Hofert.
The utils::process.events() function has been added
to trigger immediate event handling.
Sys.which() now returns NA (not "") for
NA inputs (related to PR#15147).
The print() method for class "htest" gives
fewer trailing spaces (wish of PR#15124).
Also print output from HoltWinters(), nls() and others.
loadNamespace() allows a version specification to be
given, and this is used to check version specifications given in
the Imports field when a namespace is loaded.
setClass() has a new argument, slots, clearer
and less ambiguous than representation. It is recommended
for future code, but should be back-compatible. At the same time,
the allowed slot specification is slightly more general. See the
documentation for details.
mget() now has a default for envir (the frame
from which it is called), for consistency with get() and
assign().
close() now returns an integer status where available,
invisibly. (Wish of PR#15088.)
The internal method of tar() can now store paths too
long for the ustar format, using the (widely supported) GNU
extension. It can also store long link names, but these are much
less widely supported. There is support for larger files, up to
the ustar limit of 8GB.
Local reference classes have been added to package
methods. These are a technique for avoiding unneeded
copying of large components of objects while retaining standard R
functional behavior. See ?LocalReferenceClasses.
untar() has a new argument restore_times which
if false (not the default) discards the times in the tarball.
This is useful if they are incorrect (some tarballs submitted to
CRAN have times in a local time zone or many years in the
past even though the standard required them to be in UTC).
replayplot() cannot (and will not attempt to) replay
plots recorded under R < 3.0.0. It may crash the R session if
an attempt is made to replay plots created in a different build of
R >= 3.0.0.
Palette changes get recorded on the display list, so
replaying plots (including when resizing screen devices and using
dev.copy()) will work better when the palette is changed
during a plot.
chol(pivot = TRUE) now defaults to LAPACK, not LINPACK.
The parse() function has a new parameter
keep.source, which defaults to options("keep.source").
Profiling via Rprof() now optionally records information
at the statement level, not just the function level.
The Rprof() function now quotes function names in
in its output file on Windows, to be consistent with the quoting
in Unix.
Profiling via Rprof() now optionally records
information about time spent in GC.
The HTML help page for a package now displays non-vignette documentation files in a more accessible format.
To support options(stringsAsFactors = FALSE),
model.frame(), model.matrix() and
replications() now automatically convert character
vectors to factors without a warning.
The print method for objects of class "table"
now detects tables with 0-extents and prints the results as, e.g.,
< table of extent 0 x 1 x 2 >. (Wish of PR#15198.)
Deparsing involving calls to anonymous functions has been made closer to reversible by the addition of extra parentheses.
The function utils::packageName() has been added as
a lightweight version of methods::getPackageName().
find.package(lib.loc = NULL) now treats loaded
namespaces preferentially in the same way as attached packages
have been for a long time.
In Windows, the Change Directory dialog now defaults to the current working directory, rather than to the last directory chosen in that dialog.
available.packages() gains a
"license/restricts_use" filter which retains only packages
for which installation can proceed solely based on packages which
are guaranteed not to restrict use.
New check_packages_in_dir() function in package
tools for conveniently checking source packages along with
their reverse dependencies.
R's completion mechanism has been improved to handle help requests (starting with a question mark). In particular, help prefixes are now supported, as well as quoted help topics. To support this, completion inside quotes are now handled by R by default on all platforms.
The memory manager now allows the strategy used to balance
garbage collection and memory growth to be controlled by setting
the environment variable R_GC_MEM_GROW. See ?Memory
for more details.
(‘For experts only’, as the introductory manual
says.) The use of environment variables R_NSIZE and
R_VSIZE to control the initial (= minimum) garbage
collection trigger for number of cons cels and size of heap has
been restored: they can be overridden by the command-line options
--min-nsize and --min-vsize; see ?Memory.
On Windows, the device name for bitmap devices as reported
by .Device and .Devices no longer includes the file
name. This is for consistency with other platforms and was
requested by the lattice maintainer.
win.metafile() still uses the file name: the exact form is
used by package tkrplot.
set.seed(NULL) re-initializes .Random.seed as
done at the beginning of the session if not already set.
(Suggestion of Bill Dunlap.)
The breaks argument in hist.default() can now be
a function that returns the breakpoints to be used (previously it
could only return the suggested number of breakpoints).
File ‘share/licenses/licenses.db’ has some clarifications, especially as to which variants of ‘BSD’ and ‘MIT’ is intended and how to apply them to packages. The problematic licence ‘Artistic-1.0’ has been removed.
This section applies only to 64-bit platforms.
There is support for vectors longer than 2^31 - 1 elements. This applies to raw, logical, integer, double, complex and character vectors, as well as lists. (Elements of character vectors remain limited to 2^31 - 1 bytes.)
Most operations which can sensibly be done with long vectors
work: others may return the error ‘long vectors not
supported yet’. Most of these are because they explicitly work
with integer indices (e.g. anyDuplicated() and
match()) or because other limits (e.g. of character strings
or matrix dimensions) would be exceeded or the operations would be
extremely slow.
length() returns a double for long vectors, and
lengths can be set to 2^31 or more by the
replacement function with a double value.
Most aspects of indexing are available. Generally double-valued indices can be used to access elements beyond 2^31 - 1.
There is some support for matrices and arrays with each
dimension less than 2^31 but total number of
elements more than that. Only some aspects of matrix algebra work
for such matrices, often taking a very long time. In other cases
the underlying Fortran code has an unstated restriction (as was
found for complex svd()).
dist() can produce dissimilarity objects for more
than 65536 rows (but for example hclust() cannot process
such objects).
serialize() to a raw vector is unlimited in size
(except by resources).
The C-level function R_alloc can now allocate
2^35 or more bytes.
agrep() and grep() will return double vectors
of indices for long vector inputs.
Many calls to .C() have been replaced by
.Call() to allow long vectors to be supported (now or in
the future). Regrettably several packages had copied the non-API
.C() calls and so failed.
.C() and .Fortran() do not accept long vector
inputs. This is a precaution as it is very unlikely that existing
code will have been written to handle long vectors (and the R
wrappers often assume that length(x) is an integer).
Most of the methods for sort() work for long vectors.
rank(), sort.list() and order() support
long vectors (slowly except for radix sorting).
sample() can do uniform sampling from a long vector.
More use has been made of R objects representing registered entry points, which is more efficient as the address is provided by the loader once only when the package is loaded.
This has been done for packages base, methods,
splines and tcltk: it was already in place for the
other standard packages.
Since these entry points are always accessed by the R entry
points they do not need to be in the load table which can be
substantially smaller and hence searched faster. This does mean
that .C / .Fortran / .Call calls copied from
earlier versions of R may no longer work – but they were never
part of the API.
Many .Call() calls in package base have been
migrated to .Internal() calls.
solve() makes fewer copies, especially when b
is a vector rather than a matrix.
eigen() makes fewer copies if the input has dimnames.
Most of the linear algebra functions make fewer copies when the input(s) are not double (e.g. integer or logical).
A foreign function call (.C() etc) in a package
without a PACKAGE argument will only look in the first DLL
specified in the ‘NAMESPACE’ file of the package rather than
searching all loaded DLLs. A few packages needed PACKAGE
arguments added.
The @<- operator is now implemented as a primitive,
which should reduce some copying of objects when used. Note that
the operator object must now be in package base: do not try
to import it explicitly from package methods.
The transitional support for installing packages without
namespaces (required since R 2.14.0) has been removed.
R CMD build will still add a namespace, but a
.First.lib() function will need to be converted.
R CMD INSTALL no longer adds a namespace (so
installation will fail), and a .First.lib() function in a
package will be ignored (with an installation warning for now).
As an exception, packages without a ‘R’ directory and no ‘NAMESPACE’ file can still be installed.
Packages can specify in their ‘DESCRIPTION file’ a line like
Biarch: yesto be installed on Windows with --force-biarch.
Package vignettes can now be processed by other engines
besides Sweave; see ‘Writing R Extensions’ and the
tools::vignetteEngine help topic for details.
The ‘*.R’ tangled source code for vignettes is now
included in tarballs when R CMD build is used to produce
them. In R 3.0.0, ‘*.R’ files not in the sources will be
produced at install time, but eventually this will be dropped.
The package type "mac.binary" now looks in a path in
the repository without any Mac subtype (which used to be
universal or leopard): it looks in
‘bin/macosx/contrib/3.0’ rather than
‘bin/macosx/leopard/contrib/2.15’). This is the type used
for the CRAN binary distribution for OS X as from R
3.0.0.
File ‘etc/Makeconf’ makes more use of the macros
$(CC), $(CXX), $(F77) and $(FC), so
the compiler in use can be changed by setting just these (and if
necessary the corresponding flags and FLIBS) in file
‘~/.R/Makevars’.
This is convenient for those working with binary distributions of R, e.g. on OS X.
R CMD check now gives a warning rather than a
note if it finds calls to abort, assert or
exit in compiled code, and has been able to find the
‘.o’ file in which the calls occur.
Such calls can terminate the R process which loads the package.
The location of the build and check environment files can now be specified by the environment variables R_BUILD_ENVIRON and R_CHECK_ENVIRON, respectively.
R CMD Sweave gains a --compact option
to control possibly reducing the size of the PDF file it creates
when --pdf is given.
R CMD build now omits Eclipse's ‘.metadata’
directories, and R CMD check warns if it finds them.
R CMD check now does some checks on functions
defined within reference classes, including of .Call() etc
calls.
R CMD check --as-cran notes assignments to the
global environment, calls to data() which load into the
global environment, and calls to attach().
R CMD build by default uses the internal method of
tar() to prepare the tarball. This is more likely to
produce a tarball compatible with R CMD INSTALL and
R CMD check: an external tar program,
including options, can be specified via the environment
variable R_BUILD_TAR.
tools::massageExamples() is better protected against
packages which re-define base functions such as cat() and
get() and so can cause R CMD check to fail when
checking examples.
R CMD javareconf has been enhanced to be more
similar to the code used by configure.
There is now a test that a JNI program can be compiled (like
configure did) and only working settings are used.
It makes use of custom settings from configuration recorded in ‘etc/javaconf’.
The --no-vignettes argument of R CMD
build has been renamed to the more accurate
--no-build-vignettes: its action has always been to
(re)build vignettes and never omitted them.
R CMD check accepts --no-build-vignettes as a
preferred synonym for --no-rebuild-vignettes.
The ENCODING argument to .C() is defunct.
Use iconv() instead.
The .Internal(eval.with.vis) non-API function has
been removed.
Support for the converters for use with .C() has been
removed, including the oft misused non-API header
‘R_ext/RConverters.h’.
The previously deprecated uses of array() with a
0-length dim argument and tapply() with a 0-length
INDEX list are now errors.
Translation packages are defunct.
Calling rep() or rep.int() on a pairlist or
other non-vector object is now an error.
Several non-API entry points have been transferred to
packages (e.g. R_zeroin2) or replaced by different non-API
entry points (e.g. R_tabulate).
The ‘internal’ graphics device invoked by
.Call("R_GD_nullDevice", package = "grDevices") has
been removed: use pdf(file = NULL) instead.
The .Fortran() entry point "dqrls" which has
not been used by R since version 2.15.1 is no longer available.
Functions traceOn() and traceOff() in package
methods are now defunct.
Function CRAN.packages() is finally defunct.
Use of col2rgb(0) is defunct: use par("bg") or
NA instead.
The long-defunct functions Rd_parse(),
anovalist.lm(), categpry(), clearNames(),
gammaCody(), glm.fit.null(), lm.fit.null(),
lm.wfit.null(), manglePackageNames(),
mauchley.test(), package.contents(),
print.coefmat(), reshapeLong(),
reshapeWide(), tkclose(), tkcmd(),
tkfile.dir(), tkfile.tail(), tkopen(),
tkputs(), tkread(), trySilent() and
zip.file.extract() have been removed entirely (but are
still documented in the help system).
The unused dataPath argument to
attachNamespace() has been removed.
grid.prompt() has been removed: use
devAskNewPage() instead.
The long-deprecated intensities component is no
longer returned by hist().
mean() for data frames and sd() for data
frames and matrices are defunct.
chol(pivot = FALSE, LINPACK = TRUE),
ch2inv(LINPACK = TRUE), eigen(EISPACK = TRUE),
solve(LINPACK = TRUE) and svd(LINPACK = TRUE) are
defunct: LAPACK will be used, with a warning.
The keep.source argument to library() and
require() is defunct. This option needs to be set
at install time.
Documentation for real(), as.real() and
is.real() has been moved to ‘defunct’ and the
functions removed.
The maxRasters argument of pdf() (unused since
R 2.14.0) has been removed.
The unused fontsmooth argument has been removed from
the quartz() device.
All the (non-API) EISPACK entry points in R have been removed.
chol(pivot = TRUE, LINPACK = TRUE) is deprecated.
The long-deprecated use of \synopsis in the
Usage section of ‘.Rd’ files will be removed in R
3.1.0.
.find.package() and .path.package() are
deprecated: only the public versions without the dot have ever
been in the API.
In a package's ‘DESCRIPTION’ file,
License: X11is deprecated, since it includes ‘Copyright (C) 1996 X Consortium’ which cannot be appropriate for a current R package. Use ‘MIT’ or ‘BSD_2_clause’ instead.
The C code underlying base graphics has been migrated to the
graphics package (and hence no longer uses
.Internal() calls).
Most of the .Internal() calls used in the stats
package have been migrated to C code in that package.
This means that a number of .Internal() calls which have
been used by packages no longer exist, including
.Internal(cor) .Internal(cov),
.Internal(optimhess) and .Internal(update.formula).
Some .External() calls to the base package
(really to the R executable or shared library) have been moved to
more appropriate packages. Packages should not have been using
such calls, but some did (mainly those used by integrate()).
There is a new function mcaffinity() which allows
getting or setting the CPU affinity mask for the current R process on
systems that supports this (currently only Linux has been tested
successfully). It has no effect on systems which do not support
process affinity. Users are not expected to use this function
directly (with the exception of fixing libraries that break
affinity settings like OpenBLAS) – the function is rather
intended to support affinity control in high-level parallel
functions. In the future, R may supplement lack of affinity
control in the OS by its own bookkeeping via mcaffinity()
related to processes and threads it spawns.
mcparallel() has a new argument mc.affinity
which attempts to set the affinity of the child process according
to the specification contained therein.
The port used by socket clusters is chosen randomly: this
should help to avoid clashes observed when two users of a
multi-user machine try to create a cluster at the same time. To
reproduce the previous behaviour set environment variable
R_PARALLEL_PORT to 10187.
There has been some minor re-organization of the non-API header files. In particular, ‘Rinternals.h’ no longer includes the non-API header ‘R_exts/PrtUtil.h’, and that no longer includes ‘R_exts/Print.h’.
Passing NULL to .C() is now an error.
.C() and .Fortran() now warn if
"single" arguments are used with DUP = FALSE, as
changes to such arguments are not returned to the caller.
C entry points R_qsort and R_qsort_I now have
start and end as size_t to allow them to work
with longer vectors on 64-bit platforms. Code using them should
be recompiled.
A few recently added C entry points were missing the
remapping to Rf_, notably [dpq]nbinom_mu.
Some of the interface pointers formerly available only to
R.app are now available to front-ends on all
Unix-alikes: one has been added for the interface to
View().
PACKAGE = "" is now an error in .C() etc calls:
it was always contrary to the documentation.
Entry point rcont2 has been migrated to package
stats and so is no longer available.
R_SVN_REVISION in ‘Rversion.h’ is now an integer
(rather than a string) and hence usable as e.g.
#if R_SVN_REVISION < 70000.
The entry points rgb2hsv and hsv2rgb have been
migrated to package grDevices and so are no longer available.
R_GE_version has been increased to 10 and
name2col removed (use R_GE_str2col instead). R
internal colour codes are now defined using the typedef
rcolor.
The REPROTECT macro now checks that the protect index
is valid.
Several non-API entry points no longer used by R have been
removed, including the Fortran entry points chol,
chol2inv, cg, ch and rg, and the C
entry points Brent_fmin, fft_factor and fft_work.
If a .External call is registered with a number of
arguments (other than -1), the number of arguments passed
is checked for each call (as for other foreign function calls).
It is now possible to write custom connection implementations outside core R using ‘R_ext/Connections.h’. Please note that the implementation of connections is still considered internal and may change in the future (see the above file for details).
The management of translations has been converted to R
code: see ?tools::update_pkg_po.
The translations for the R interpreter and
RGui.exe are now part of the base package (rather than
having sources in directory ‘po’ and being installed to
‘share/locale’). Thus the base package supports three
translation domains, R-base, R and RGui.
The compiled translations which ship with R are all
installed to the new package translations for easier
updating. The first package of that name found on
.libPaths() at the start of the R session will be used.
(It is possible messages will be used before .libPaths() is
set up in which case the default translations will be used: set
environment variable R_TRANSLATIONS to point to the location
of the intended translations package to use this right from
the start.)
The translations form a separate group in the Windows installer, so can be omitted if desired.
The markup for many messages has been changed to make them easier to translate, incorporating suggestions from Łukasz Daniel.
There is again support for building without using the C
‘long double’ type. This is required by C99, but system
implementations can be slow or flawed. Use configure
option --disable-long-double.
make pdf and make install-pdf now make
and install the full reference index (including all base and
recommended packages).
The 'reference manual' on the Windows GUI menu and included in the installer is now the full reference index, including all base and recommended packages.
R help pages and manuals have no ISBNs because ISBN rules no longer allow constantly changing content to be assigned an ISBN.
The Windows installer no longer installs a Start Menu link to the static help pages; as most pages are generated dynamically, this led to a lot of broken links.
Any custom settings for Java configuration are recorded in
file ‘etc/javaconf’ for subsequent use by R CMD
javareconf.
There is now support for makeinfo version 5.0
(which requires a slightly different ‘.texi’ syntax).
The minimum versions for --use-system-zlib and
--use-system-pcre are now tested as 1.2.5 and 8.10
respectively.
On Windows, the stack size is reduced to 16MB on 32-bit systems: misguided users were launching many threads without controlling the stack size.
configure no longer looks for file
‘~/.Rconfig’: ‘~/.R/config’ has long been preferred.
When R CMD build is run in an encoding other than
the one specified in the package's ‘DESCRIPTION’ file it
tries harder to expand the authors@R field in the specified
encoding. (PR#14958)
If R CMD INSTALL is required to expand the
authors@R field of the ‘DESCRIPTION’ file, it tries
harder to do so in the encoding specified for the package (rather
than using ASCII escapes).
Fix in package grid for pushing a viewport into a layout cell, where the layout is within a viewport that has zero physical width OR where the layout has zero total relative width (likewise for height). The layout column widths (or row heights) in this case were being calculated with non-finite values. (Reported by Winston Chang.)
solve(A, b) for a vector b gave the answer
names from colnames(A) for LINPACK = TRUE but not in
the default case.
La.svd() accepts logical matrices (as documented, and
as svd() did).
legend() now accepts negative pch values, in
the same way points() long has.
Parse errors when installing files now correctly display the name of the file containing the bad code.
In Windows, tcltk windows were not always properly constructed. (PR#15150)
The internal functions implementing parse(),
tools::parseLatex() and tools::parse_Rd() were not
reentrant, leading to errors in rare circumstances such as a
garbage collection triggering a recursive call.
Field assignments in reference class objects via
$<- were not being checked
because the magic incantation to turn methods on for that
primitive operator had been inadvertently omitted.
setHook(hookname, value, action="replace") set the
hook to be the value, rather than a list containing the value as
documented. (PR#15167)
If a package used a ‘NEWS.Rd’ file, the main HTML package index page did not link to it. (Reported by Dirk Eddelbuettel.)
The primitive implementation of @<- was not
checking the class of the replacement. It now does a check,
quicker but less general than slot<-. See the help.
split(x, f) now recycles classed objects x in
the same way as vectors. (Reported by Martin Morgan.)
pbeta(.28, 1/2, 2200, lower.tail=FALSE, log.p=TRUE)
is no longer -Inf; ditto for corresponding pt() and
pf() calls, such as pt(45, df=5000, lower.tail=FALSE,
log.p=TRUE). (PR#15162)
The Windows graphics device would crash R if a user attempted to load the graphics history from a variable that was not a saved history. (PR#15230)
The workspace size for the predict()
method for loess() could exceed the maximum integer size.
(Reported by Hiroyuki Kawakatsu.)
ftable(x, row.vars, col.vars) now also works when the
*.vars arguments are (integer or character vectors) of
length zero.
Calling cat() on a malformed UTF-8 string could cause
the Windows GUI to lock up. (PR#15227)
removeClass(cc) gave "node stack overflow" for some
class definitions containing "array" or "matrix".
Older news can be found in text format in files {‘NEWS.0’, ‘NEWS.1’ and ‘NEWS.2’ in the R home directory. News in HTML format for R versions from 2.10.0 to 2.15.3 is in NEWS.2.html.