Hi I am comparing the output of rollmax in two versions of R. In the current version, the column names are 'lost' ie NULL in the output; in the earlier version they were retained.
Function rollapply has the same behaviour as before. Is this change in rollmax behaviour deliberate? Thanks Giles R2.13.1 + zoo 1.7-4 on Windows 7 > a <- as.zoo(matrix(1:20,4,5,dimnames=list(LETTERS[1:4],letters[1:5]))) > rollapply(data=a,FUN=mean,width=3) a b c d e 2 2 6 10 14 18 3 3 7 11 15 19 > rollmax(x=a,k=3) a b c d e 2 3 7 11 15 19 3 4 8 12 16 20 > str(colnames(rollmax(x=a,k=3))) chr [1:5] "a" "b" "c" "d" "e" R2.15.0 + zoo 1.7-7 > a <- as.zoo(matrix(1:20,4,5,dimnames=list(LETTERS[1:4],letters[1:5]))) > rollapply(data=a,FUN=mean,width=3) a b c d e 2 2 6 10 14 18 3 3 7 11 15 19 > rollmax(x=a,k=3) 2 3 7 11 15 19 3 4 8 12 16 20 > str(colnames(rollmax(x=a,k=3))) NULL ______________________________________________ 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.
