[R] adding planes/lines to 3d surface plots? (persp, wireframe)

= TRUE), but the second surface obscures the first. Thanks, Sam Yeaman UBC Department of Zoology __ 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

[R] ANOVA contrast matrix vs. TukeyHSD?

the other contrasts. Sorry if these questions are ignorant...I have spent a long time trying to figure it out and haven't found the answer in either the available books or the help list. Many thanks, Sam Yeaman __ R-help@r-project.org mailing list