Hi Joseph,
Try this:

DF1[!DF1$V1%in%DF2$V1,]
subset(DF1,!V1%in%DF2$V1)

HTH,

Jorge


On Sun, Sep 14, 2008 at 12:49 PM, joseph <jdsandjd@yahoo.com> wrote:

> Hello
> I have 2 data frames DF1 and DF2 where DF2 is a subset of DF1:
> DF1= data.frame(V1=1:6, V2= letters[1:6])
> DF2= data.frame(V1=1:3, V2= letters[1:3])
> How do I create a new data frame of the difference between DF1 and DF2
> newDF=data.frame(V1=4:6, V2= letters[4:6])
> In my real data, the rows are not in order as in the example I provided.
> Thanks much
> Joseph
>
>
>
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