In R.2.9.2 I get the following error message if setting col.names=FALSE:

> write.csv(x, '', col.names=FALSE)
"","a","b"
"1",1,1
"2",2,2
"3",3,3
"4",4,4
"5",5,5
"6",6,6
"7",7,7
"8",8,8
"9",9,9
"10",10,10
Warning message:
In write.csv(x, "", col.names = FALSE) : attempt to set 'col.names' ignored
You have to use write.table if you don't want the column names; it is on the
help page:

> write.table(x,sep=',', col.names=FALSE)
"1",1,1
"2",2,2
"3",3,3
"4",4,4
"5",5,5
"6",6,6
"7",7,7
"8",8,8
"9",9,9
"10",10,10
>


On Fri, Dec 18, 2009 at 8:37 AM, Reeyarn_李智洋_10928113 <reeyarn@gmail.com>wrote:

> On Fri, Dec 18, 2009 at 7:52 AM, kayj <kjaja27@yahoo.com> wrote:
> >
> > Hi All,
> >
> > I always have a problem with write.csv when I want the column names to be
> > ignored, when I specify col.names=F, I get a header of V1 V2 V3 V4 etc.
> >
>
> I tried that and found the same problem, however, I found
>  write.table(mydata, file="data.csv",col.names=F)
> works.
>
> write.csv calls write.table to save data, is there something wrong with it?
>
> --
> Best Regards,
> Reeyarn T. Lee
>
> ______________________________________________
> 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<http://www.r-project.org/posting-guide.html>
> and provide commented, minimal, self-contained, reproducible code.
>



-- 
Jim Holtman
Cincinnati, OH
+1 513 646 9390

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