> * Sam Steingold <f...@tah.bet> [2011-02-14 18:42:40 -0500]: > > byFOO$Mean <- aggregate(all$Value, by = list(all$FOO), FUN = mean)$x;
this fails with There were 50 or more warnings (use warnings() to see the first 50) > warnings() Warning messages: 1: In mean.default(X[[1L]], ...) : argument is not numeric or logical: returning NA 2: In mean.default(X[[2L]], ...) : argument is not numeric or logical: returning NA 3: In mean.default(X[[3L]], ...) : argument is not numeric or logical: returning NA 4: In mean.default(X[[4L]], ...) : argument is not numeric or logical: returning NA 5: In mean.default(X[[5L]], ...) : argument is not numeric or logical: returning NA note that there are absolutely no NAs in all$Value: > all(!is.na(all$Value)) [1] TRUE -- Sam Steingold (http://sds.podval.org/) on CentOS release 5.3 (Final) http://iris.org.il http://www.memritv.org http://pmw.org.il http://camera.org http://mideasttruth.com http://dhimmi.com ((lambda (x) `(,x ',x)) '(lambda (x) `(,x ',x))) ______________________________________________ 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.
