Hi folks, I'm doing ANOVA with multiple comparisons. I've used both the TukeyHSD function and the multcomp procedure. In both cases, I get some tantalizing results such as this...
e = aov(lm(d.all[,(n+4)] ~ d.all[,4]) TukeyHSD(e) Tukey multiple comparisons of means 95% family-wise confidence level Fit: aov(formula = lm(d.all[, (n + 4)] ~ d.all[, 4], contrast = C)) $`d.all[, 4]` diff lwr upr p adj 10 mpk-0 mpk -0.677375 -1.1779417 -0.1768083 0.0071092 30 mpk-0 mpk -1.074500 -1.5750667 -0.5739333 0.0000656 30 mpk-10 mpk -0.397125 -0.8976917 0.1034417 0.1369760 I ask for the pvalues and get... i = h$pvalues i 10 mpk - 0 mpk 30 mpk - 0 mpk 30 mpk - 10 mpk 2.630022e-03 2.288575e-05 5.863517e-02 It looks like a matrix, but it is a vector of length 3 and the third element, for example, is.... > length(i) [1] 3 > q = i[3] > q 30 mpk - 10 mpk 0.05863517 The contrast label is bound to the p-value as a single element. Does anyone know how to extract just the p-value from this procedure? Or a simple way to generate these comparisons? Thanks, Bob Gallavan An obvious newbie ------------------------------"This message is the property of i3Global and may include confidential and/or proprietary information, and may be used only by the person or entity to which it is addressed. If the reader of this e-mail is not the intended recipient or his or her authorized agent, the reader is hereby notified that any dissemination, distribution or copying of this e-mail is prohibited. If you have received this e-mail in error, please notify the sender by replying to this message and delete this e-mail immediately."============================== [[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.