[R] xyplot type 'a' with mean symbols
jasminecurrall at hotmail.com
Sat Oct 20 08:31:30 CEST 2012
I almost have the graph I want (except for moving the legend into the
Can someone please tell me how to put symbols at the means for this graph?
xyplot (anxiety ~ treatment, groups=therapist, data=study2, ylim=c(0,50),
Thank you so much :)
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