Gabor Grothendieck wrote: > On 9/10/05, Jose Claudio Faria <[EMAIL PROTECTED]> wrote: > >>Dear R-list, >> >>Could anybody tell me how to make one matrix as the below: >> >> [,1] [,2] [,3] [,4] [,5] [,6] >>[1,] - 2 3 4 5 6 >>[2,] 2 - 2 3 4 5 >>[3,] 3 2 - 2 3 4 >>[4,] 4 3 2 - 2 3 >>[5,] 5 4 3 2 - 2 >>[6,] 6 5 4 3 2 - >> > > > Assuming that - means NA > > dd <- diag(NA, 6) > abs(col(dd) - row(dd)) + 1 + dd > > or > > abs(outer(1:6, 1:6, "-")) + 1 + diag(NA,6) > > or > > f <- function(x,y) ifelse(x==y, NA, abs(x-y)+1) > outer(1:6, 1:6, f)
Hi, You are always solving (and teaching) my R doubts: thanks Gabor, very much! Because I need one, I've been trying to make a more flexible function for multiple comparison test of means (Tukey, SNK and Duncan). The matrix above is necessary for SNK and Duncan tests. So, when running I will to sent it for you for suggestions. Best, -- Jose Claudio Faria Brasil/Bahia/UESC/DCET Estatistica Experimental/Prof. Adjunto mails: [EMAIL PROTECTED] [EMAIL PROTECTED] [EMAIL PROTECTED] tel: 73-3634.2779 ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
