Sorry if I am cluttering up this list with too many rank beginner questions. But I *am* a rank beginner, and I am at my wit's end with this one:
I have a data frame df, with components x,y,z. This command to make a contour plot with lattice graphics works just fine: > contourplot(z~x*y,data=df,cuts=20) Then I try > contourplot(z~x*y,data=df,cuts=20,region=T) And it dies on me with the error: Error in unit(x, default.units) : 'x' and 'units' must have length > 0 I have done maybe a hundred contour plots in this same exact way, and have never seen this error before. And it seems to me that adding the flag region=T should be a benign thing to do. I have no idea what it causing the problem. Anyone see what I'm doing wrong? Thanks! --Sam Cable ______________________________________________ [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 and provide commented, minimal, self-contained, reproducible code.
