Dear R list members,
I have a question regarding xyplot.  I managed to make a xyplot of all the
IDs by using the syntax below:

xyplot(PA ~ CRPC + CRPT | ID, data = redinteract)

Now, I'd like to make a graph of a specific ID number (e.g., only ID number
301).  I thought I could use "subset", but it seems to be not working.
 Could anyone let me know how I can make a graph of a specific ID?

Thank you for your help in advance!

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