Is there a reason why append=TRUE should not be used?
I actually use it a lot; that way I have less csv files created. I can output everything to a single file. Since some statistical tests returns lists with different number of elements, it is not always possible to export the output all at once (or at least I don't know how).
All the packages that I know of that export to xls do not append either. So from R2.11 is there no way to append to xls/csv anymore? Ivan Le 6/1/2010 11:56, jim holtman a écrit :
As noted in the help file under CSV files: These wrappers are deliberately inflexible: they are designed to ensure that the correct conventions are used to write a valid file. Attempts to change append, col.names, sep, dec or qmethod are ignored, with a warning. On Mon, May 31, 2010 at 8:33 PM, Steven Worthington <steven.worthing...@gmail.com> wrote:Dear R users, I have recently begun to reuse some functions I made several months ago. The scripts write to a .csv file using the 'write.csv' function with the append option set to TRUE. This used to work fine, albeit with the warning "appending column names to file". I upgraded to R version 2.11.0 on OSX 10.5.8 and 'write.csv' will no longer append any files - I get the warning "attempt to set 'append' ignored". The exact same object will append when using 'write.table' without issue. Here's a minimal example. Has there been a change in 'write.csv'? # -------------------------------- x<- rnorm(10, 5) y<- rnorm(10, 10) z<- rnorm(10, 15) dat<- data.frame(x, y, z) names(dat)<- c("first", "second", "third") write.csv(dat, file="dat.csv", append=TRUE) write.table(dat, file="dat2.csv", sep=",", row.names=FALSE, append=TRUE) # -------------------------------- best, Steve -- View this message in context: http://r.789695.n4.nabble.com/New-behavior-of-write-csv-append-argument-tp2237936p2237936.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
-- Ivan CALANDRA PhD Student University of Hamburg Biozentrum Grindel und Zoologisches Museum Abt. Säugetiere Martin-Luther-King-Platz 3 D-20146 Hamburg, GERMANY +49(0)40 42838 6231 ivan.calan...@uni-hamburg.de ********** http://www.for771.uni-bonn.de http://webapp5.rrz.uni-hamburg.de/mammals/eng/mitarbeiter.php ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
