Manuel Spínola <[EMAIL PROTECTED]> writes: > > When I specify the pch=c(1, 3), which are a "dot" and a "+" character, > the "dot" is assigned to the year 1932 (that appear after year 1931) > and the "+" is assigned to the year 1931 (that appear first in the > data frame). Why is that? I though R should assign the first character > in the vector (pch= c(1, 3)) to the first level in the grouping > variable (year).
It does. Looking at barley$year reveals that for some reason, 1932 is the first level, 1931 is the second in that dataset. Tyler _______________________________________________ R-sig-ecology mailing list R-sig-ecology@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-ecology
