Laura Holt wrote: > Hi R! > > I have a 3 dimensional array, which is 21 x 3 x 3 > > I want to use apply to sum on each 21x3 matrix, which is fine. > > Is there a way that I can do this in 1 step instead of a loop (3), please?
Don't know which direction you mean, I guess one of the following: apply(x, c(1,2), sum) apply(x, 3, sum) Uwe Ligges > thanks, > Laura Holt > mailto: [EMAIL PROTECTED] > > ______________________________________________ > [email protected] mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html ______________________________________________ [email protected] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
