| write.foreign {foreign} | R Documentation |
This function exports simple data frames to other statistical packages by writing the data as free-format text and writing a separate file of instructions for the other package to read the data.
write.foreign(df, datafile, codefile,
package = c("SPSS", "Stata", "SAS"), ...)
df |
A data frame |
datafile |
Name of file for data output |
codefile |
Name of file for code output |
package |
Name of package |
... |
Other arguments for the individual writeForeign
functions |
The work for this function is done by
foreign:::writeForeignStata, foreign:::writeForeignSAS and
foreign:::writeForeignSPSS. To add support for another package,
eg Systat, create a function writeForeignSystat with the same first
three arguments as write.foreign. This will be called from
write.foreign when package="Systat".
Numeric variables and factors are supported for all packages: dates and times
(Date, dates, date, and POSIXt classes) are
also supported for SAS and characters are supported for SPSS.
For package="SAS" there are optional arguments dataname="rdata"
taking a string that will be the SAS data set name and
validvarname taking either "V6" or "V7".
None
Thomas Lumley and Stephen Weigand
## Not run: datafile<-tempfile() codefile<-tempfile() write.foreign(esoph,datafile,codefile,package="SPSS") file.show(datafile) file.show(codefile) unlink(datafile) unlink(codefile) ## End(Not run)