memory-efficient storage of large atomic vectors and arrays on disk and fast access functions


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Documentation for package ‘ff’ version 2.0.0

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A B C D E F G H I L M N O P Q R S T U V W Y misc

.ffbytes Virtual storage mode
.ffmode Virtual storage mode
.rambytes Virtual storage mode
.rammode Virtual storage mode
.vcoerceable Virtual storage mode
.vimplemented Virtual storage mode
.vmax Virtual storage mode
.vmin Virtual storage mode
.vmode Virtual storage mode
.vNA Virtual storage mode
.vunsigned Virtual storage mode
.vvalues Virtual storage mode

-- A --

add Incrementing an ff or ram object
array2vector Array: make vector from array
arrayIndex2vectorIndex Array: make vector positions from array index
as.boolean Coercing to virtual mode
as.byte Coercing to virtual mode
as.character.hi Hybrid Index, coercing from
as.ff Coercing ram to ff and ff to ram objects
as.hi Hybrid Index, coercion to
as.integer.hi Hybrid Index, coercing from
as.logical.hi Hybrid Index, coercing from
as.matrix.hi Hybrid Index, coercing from
as.nibble Coercing to virtual mode
as.quad Coercing to virtual mode
as.ram Coercing ram to ff and ff to ram objects
as.short Coercing to virtual mode
as.ubyte Coercing to virtual mode
as.ushort Coercing to virtual mode
as.vmode Coercing to virtual mode

-- B --

bbatch Balanced Batch sizes
bigsample Sampling from large pools
boolean Create vector of virtual mode
byte Create vector of virtual mode

-- C --

ccbind Collapsing functions for batch processing
CFUN Collapsing functions for batch processing
cfun Collapsing functions for batch processing
clength Collapsing functions for batch processing
clone Cloning ff and ram objetcs
close.ff Closing ff files
close.ff_pointer Closing ff files
cmean Collapsing functions for batch processing
cmedian Collapsing functions for batch processing
cquantile Collapsing functions for batch processing
crbind Collapsing functions for batch processing
csum Collapsing functions for batch processing
csummary Collapsing functions for batch processing

-- D --

delete Deleting the file behind an ff object
deleteIfOpen Deleting the file behind an ff object
dim.ff Getting and setting dim and dimorder
dimnames.ff Getting and setting dimnames
dimnames.ff_array Getting and setting dimnames
dimorder Getting and setting dim and dimorder
dimorderCompatible Test for dimorder compatibility
dimorderStandard Test for dimorder compatibility
dummy.dimnames Array: make dimnames

-- E --

Extract.ff Reading and writing vectors and arrays (high-level)

-- F --

ff ff classes for representing (large) atomic data
ffapply Apply for ff objects
ffcolapply Apply for ff objects
ffconform Get most conforming argument
ffreturn Return suitable ff object
ffrowapply Apply for ff objects
ffsuitable Test ff object for suitability
ffsuitable_attribs Test ff object for suitability
ffvecapply Apply for ff objects
ffxtensions Test for availability of ff extensions
ff_pointer ff classes for representing (large) atomic data
filename Get filename
fixdiag Test for fixed diagonal

-- G --

get.ff Reading and writing single values (low-level)
getalignedpagesize Get page size information
getdefaultpagesize Get page size information
geterror.ff Get error and error string
geterrstr.ff Get error and error string
getpagesize Get page size information
getset.ff Reading and writing single values (low-level)

-- H --

hi Hybrid index class
hiparse Hybrid Index, parsing

-- I --

intisasc Hybrid Index, C-coded utilities
intisdesc Hybrid Index, C-coded utilities
intrle Hybrid Index, C-coded utilities
is.factor Getting and setting factor levels
is.ff Test for class ff
is.open Test if object is opened
is.ordered Getting and setting factor levels
is.readonly Get readonly status
is.sorted Getting and setting 'is.sorted' physical attribute

-- L --

length.ff Getting and setting length
length.hi Hybrid Index, querying
levels.ff Getting and setting factor levels
LimWarn ff Limitations and Warnings

-- M --

matcomb Array: make matrix indices from row and columns positions
matprint Print beginning and end of big matrix
maxffmode Lossless vmode coercability
maxindex Hybrid Index, querying
maxlength Get physical length of an ff or ram object
mismatch Test for recycle mismatch

-- N --

na.count Getting and setting 'na.count' physical attribute
names.ff Getting and setting names
names.ff_array Getting and setting names
nibble Create vector of virtual mode

-- O --

open.ff Opening an ff file

-- P --

physical Getting and setting physical and virtual attributes
poslength Hybrid Index, querying
print.ff Print and str methods
print.ff_matrix Print and str methods
print.ff_vector Print and str methods
print.matprint Print beginning and end of big matrix
print.physical Getting and setting physical and virtual attributes
print.vecprint Print beginning and end of big vector
print.virtual Getting and setting physical and virtual attributes

-- Q --

quad Create vector of virtual mode

-- R --

ram2ffcode Factor codings
ram2ramcode Factor codings
ramattribs Get ramclass and ramattribs
ramattribs_excludes Get ramclass and ramattribs
ramclass Get ramclass and ramattribs
ramclass_excludes Get ramclass and ramattribs
read.ff Reading and writing vectors (low-level)
readwrite.ff Reading and writing vectors (low-level)
regtest.vmode Virtual storage mode
repfromto Virtual recycling
rev.rlepack Hybrid Index, rle-pack utilities
rlepack Hybrid Index, rle-pack utilities
rleunpack Hybrid Index, rle-pack utilities

-- S --

set.ff Reading and writing single values (low-level)
short Create vector of virtual mode
str.ff Print and str methods
subscript2integer Hybrid Index, internal utilities
swap Reading and writing in one operation (high-level)
symmetric Test for symmetric structure
symmIndex2vectorIndex Array: make vector positions from symmetric array index

-- T --

t.ff Virtual transpose

-- U --

ubyte Create vector of virtual mode
undim Undim
unique.rlepack Hybrid Index, rle-pack utilities
unsort Hybrid Index, internal utilities
update.ff Update ff content from another object
ushort Create vector of virtual mode

-- V --

vecprint Print beginning and end of big vector
vector.vmode Create vector of virtual mode
vector2array Array: make array from vector
vectorCompatible Test for dimorder compatibility
vectorIndex2arrayIndex Array: make array from index vector positions
vectorStandard Test for dimorder compatibility
virtual Getting and setting physical and virtual attributes
vmode Virtual storage mode
vt Virtual transpose
vw Getting and setting virtual windows

-- W --

write.ff Reading and writing vectors (low-level)

-- Y --

ymismatch Test for recycle mismatch

-- misc --

[.ff Reading and writing vectors and arrays (high-level)
[.ff_array Reading and writing vectors and arrays (high-level)
[[.ff Reading and writing vectors and arrays (high-level)