Sander, >has anybody made an attempt to create the soil texture triangle >graph in R?
See ternaryplot() in package vcd. Its options are quite limited, but it may help. I think you'll need to write your own function to do a ternary plot like the one you point to, perhaps using functions in the grid package as your building blocks. Scott Waichler, Senior Research Scientist Pacific Northwest National Laboratory [EMAIL PROTECTED] ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html