Dear Rexperts,
I am trying to add a '+' identifying the mean in a boxplot using the
following
sizelist <- split(size, grp)
centers <- boxplot(sizelist, style.bxp = "att", medpch = "o",
ylab = "Prostate Volume (cm3)")
points(centers, unlist(lapply(sizelist, mean)), pch = "+")
But, I get error
Error in xy.coords(x, y) : 'x' and 'y' lengths differ
which I do not understand.
The data follows
grp size
AE 9.132
AE 10.07
AE 20.077
AE 14.691
AE 23.698
E1 10.356
E1 6.313
E1 21.708
E1 12.651
E1 15.464
E2 37.2
E2 12.639
E2 16.791
E2 36.996
E2 22.808
CC 1.975
CC 3.125
CC 4.433
CC 6.154
CC 4.175
NC 9.301
NC 13.531
NC 12.84
NC 14.336
NC 25.102
Please help.
--
Oscar
Oscar A. Linares, MD
Translational Medicine Unit
LaPlaisance Bay, Bolles Harbor
Monroe, Michigan 48161
Department of Medicine,
University of Toledo College of Medicine
Toledo, OH 43606-3390
Department of Internal Medicine,
The Detroit Medical Center (DMC)
Harper University Hospital
Wayne State University School of Medicine
Detroit, Michigan 48201
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