R help - Aug 2009 - Differing rows in two data.frames?

Hi,
   What commands would I look at to compare row-by-row two data frames
of the same size and print out any differences between the two?

Thanks,
Mark

On Mon, Aug 17, 2009 at 2:25 PM, Mark Knecht<markknecht at gmail.com>
wrote:
> Hi,
> ? What commands would I look at to compare row-by-row two data frames
> of the same size and print out any differences between the two?
>
> Thanks,
> Mark
>
So I got an answer using the following code:

XXX = cbind(SystemWithCP, SystemWithoutCP)
head(XXX)
names(XXX)[14] = "NewPLPos"
head(XXX)
YYY = subset(XXX, XXX$PL_Pos != XXX$NewPLPos)

write.csv(YYY, "C:\\Dave1.csv")

This works (I suppose) because the two data.frames are exactly the
same size. Seems like there probably a much better way to do it but
this seems to work.

- Mark