Dear List, I am trying to plot a similar graph to attached from minitab manual in R. I have a response Y and three components which systematically vary in their proportions. I have found in R methods/packages to plot ternary plots (eg. plotrix) but nothing which can extend it to response surface in 3-D.
Any help appreciated, Tim Carnus [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org 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.