Dear Friends, I am doing a rather simple histogram on a vector of data, MR. I set breaks for the intervals: hist(MR,breaks=c(0, 2.9, 5.9, 8.9, 11.9,14.9, 17.9, 20.9)) My question is, how do I change the labels on the tick marks? I have looked at ?hist and can't find a clue... Thanks in advance. Larry