[R] "Groups" in XYPLOT

[Deepayan Sarkar]

On 3/17/07, Thomas Colson <tpcolson at ncsu.edu> wrote:
>  Thanks for the warning:
> Here is the link to the datasets, rather large at 2 and 5 mb. Another note
> is that one set has more datapoints than the other, don't know if this can
> be done with xyplot.

As long as the two datasets have the same column name, you should be
able to use the 'make.groups' function to combine them. The resulting
data frame should have a column called 'which' identifying the origin.

Deepayan