read.yearmon {FinTS} | R Documentation |
Read a text file containing monthly data with a date column and return a zoo object with index = a yearmon series with the dates read as names.
read.yearmon(file, format = "", tz = "", FUN = NULL, regular = FALSE, index.column = 1, ...)
As for read.zoo
:
file |
character giving the name of the file which the data
are to be read from/written to. See read.table and
write.table for more information. |
format |
date format argument passed to as.Date.character . |
tz |
time zone argument passed to as.POSIXct . |
FUN |
a function for computing the index from the first column of the data. See details. |
regular |
logical. Should the series be coerced to class "zooreg"
(if the series is regular)? |
index.column |
integer. The column of the data frame in which the index/time is stored. |
... |
further arguments passed to read.table or
write.table , respectively. |
TS <- read.zoo(...) zoo(coredata(TS), as.yearmon2(index(TS)))
an object of class "zoo"
(or "zooreg"
).
read.table
zoo
read.zoo
coredata
index
as.yearmon2
## Not run: ## turn *numeric* first column into yearmon index ## where number is year + fraction of year represented by month z <- read.zoo("foo.csv", sep = ",", FUN = as.yearmon2) z2 <- read.yearmon("foo.csv", sep = ",") ## End(Not run)