R v. 2.2.0 on Mac OS 10.4.3
lattice v. 0.12-11
I am trying to add a horizontal panel mean line to a series of panels
in a trellis plot (i.e. a horizontal line at the mean of y for each
individual panel). I have tried innumerable ways to do this,
including the code below, but if it works at all, it merely puts a
horizontal line in the last panel.
xyplot(diss ~ Nut-7|Size, data=dathdiss, pch=1, jitter.data=TRUE,
panel=function(x,y,...){
panel.xyplot(x,y)
panel.abline(a=mean(y),b=0) #This results in the correct line in the
last panel, but no other lines at all.
})
Any and all thoughts are appreciated.
Thank you kindly,
Hank
Dr. Martin Henry H. Stevens, Assistant Professor
338 Pearson Hall
Botany Department
Miami University
Oxford, OH 45056
Office: (513) 529-4206
Lab: (513) 529-4262
FAX: (513) 529-4243
http://www.cas.muohio.edu/~stevenmh/
http://www.muohio.edu/ecology/
http://www.muohio.edu/botany/
"E Pluribus Unum"
______________________________________________
[email protected] mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
