Hi All I am seeing quite a silly thing for which I dont have much of explanation. I want to take per row mean of 3 columns of a data frame. What I am getting is all NA in the result. Here is what I am doing
apply(a[,1:3],1,mean) I get warnings. In mean.default(newX[, i], ...) : argument is not numeric or logical: returning NA I am not sure how it thinks the values are not numeric. May be I had a long day and not able get something fairly obvious. ========== summary(a) animal1_wt animal2_wt animal3_wt 0 : 5448 0 : 5295 0 : 5501 0.232266 : 7 0.17356 : 5 6.22424 : 6 1.05487 : 6 0.00630758: 4 0.0395818 : 5 0.258336 : 5 0.0131442 : 4 4.14949 : 5 0.372308 : 5 0.0143924 : 4 0.00964998: 4 0.00926343: 4 0.017208 : 4 0.0172297 : 4 (Other) :15696 (Other) :15855 (Other) :15646 ______________________________________________ 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.
