itsFile: File Operations for Irregular Time-Series Objects

In armstrtw/its: Irregular Time Series

Description

File read and write operations for objects of class "its".

Usage

readcsvIts(filename,informat=its.format(),outformat=its.format(),tz="",usetz = FALSE,header=TRUE,...)
writecsvIts(x,filename,format=its.format(),tz="",usetz = FALSE,col.names=NA,
sep=",",split=FALSE,...)

Arguments

filename	filename
x	an object of class "its"
format, informat, outformat	formatting related arguments, see format.POSIXct.
tz	what timezone the its is in
usetz	whether to include the tzone information in the saved file
header	see read.csv
col.names, sep	see write.table
split	when columns exceed 255 in number, flags for splitting into numbered subfiles
...	further arguments passed to or from other methods: for readcsvIts passed to read.csv; for writecsvIts passed to write.table

Details

readcsvIts reads from a .csv file to a matrix. The first column is assumed to contain dates in text format specified by informat, which can optionally be reformatted into the text format outformat. Both of these formats default to the format specified by its.format. To convert the matrix to an its, use its (see example)

writecsvIts write an irregular time-series object to a text file.

Value

For readcsvIts a matrix

Author(s)

Giles Heywood

See Also

ts, POSIXct, itsFile, itsLags itsJoin itsTimes itsSubset itsFin itsInterp

Examples

## Not run: 
b <- newIts(1:30,ncol=3)
fname <- tempfile()
# To write an irregular time-series object to a file one might use
writecsvIts(b,filename=fname)
# To read an irregular time-series object from a file one might use
its(readcsvIts(filename=fname))
unlink(fname)

## End(Not run)

armstrtw/its documentation built on May 10, 2019, 1:42 p.m.