[R] write.csv with append = TRUE

[Duncan Murdoch]

On 10/10/2012 10:56 AM, R. Michael Weylandt wrote:
> write.table() should append just fine. write.csv() doesn't append I'm
> told because there's no guarantee it matches the column headings of
> the original file. That said, write.table(..., append = TRUE, sep =
> ",") is a pretty good approximation.

You may also want dec="." and qmethod="double".  I forget if the row 
name defaults are equal...

Duncan Murdoch

>
> Cheers,
> Michael
>
> On Wed, Oct 10, 2012 at 3:44 PM, Alex van der Spek <doorz at xs4all.nl> wrote:
> > Is there a way to make any of the write functions (.table or .csv) append
> > to the same file?
> >
> > I get this warning message and do not know how to enable the appending.
> >
> > Warning messages:
> > 1: In write.csv(names(Lbys)[c], fo, append = TRUE) :
> >   attempt to set 'append' ignored
> > 2: In write.csv(Lbys[[c]], fo, append = TRUE) :
> >   attempt to set 'append' ignored
> >
> >
> > Regards,
> > Alex van der Spek
> >
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