[R] Column of numbers added to dataframe when saving with read.csv

Sarah Goslee sarah.goslee at gmail.com
Wed Jun 15 17:03:40 CEST 2011


You need to add row.names=FALSE to your write.table() statement.

This and other useful options are documented in the help. And you'll
notice that that first column of row names appears in your R output as
well.

Sarah

On Wed, Jun 15, 2011 at 10:51 AM, Paolo Rossi
<statmailinglists at googlemail.com> wrote:
> I have a dataframe object having the following structure
>
>  FinalOutput[1:3,]
>     GasDays 2011-03-31 2010-09-30 2010-10-31 2010-11-30 2010-12-31
> 2011-01-31 2011-02-28
> 1 2006-10-01  217303553  221205033  222824639  217016511  216093460
> 216477468  216834021
> 2 2006-10-02  231158527  234565250  236004109  231467851  230100639
> 230079907  230734064
> 3 2006-10-03  282062314  285427832  286372163  282532055  280930498
> 281155966  281124614
> After using
> write.table(FinalOutput, paste("ModelComparison.csv", sep = ''), sep = ',')
>
> the out put I get on the csv is
>
>
>
>  GasDays 31/03/2011 30/09/2010     31/10/2010      30/11/2010
>  31/12/2010            31/01/2011       28/02/2011         31/03/2011
> 1              01/10/2006 217303553.3 221205032.6
> 222824638.7       217016510.8
> 216093460       216477467.9       216834021            217303553.3
> 2              02/10/2006 231158527.1 234565249.7
>  236004108.7       231467850.7       230100639.1       230079907.4
> 230734064.4       231158527.1
> 3              03/10/2006 282062314.5 285427831.6
> 286372163       282532055.2       280930497.7
> 281155966         281124613.8       282062314.5
>
>
> so essentially one column  full  of 1,2,3, ... is added to the file when
> saving it.
>
> Can someone pelase help me to get rid of it?
>
> Thanks
>
> Paolo
>
-- 
Sarah Goslee
http://www.functionaldiversity.org



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