Re: [R] Help with a repeating process

That certainly helps Petr. In terms of the overall question, perhaps it is better to show the code and reexplain what exactly I am trying to do: 1. I have logetf values in a [3300,9] matrix 2. I am trying to find the w value in the function: sum(abs(retT-w*prcomp(ret[(1+i):(252+i),]$rotation[,1])

Re: [R] Help with a repeating process

On Sun, Jun 24, 2012 at 08:37:23AM -0700, tbowlo wrote: > Perhaps an easier coding that shows what I want would be this: > > > for(i in 1:nrow(ret)) { > + retT=ret[1+i:252+i,]} Hi. Using your previous description, i think, you mean (1+i):(252+i). Note that this is quite different from 1+i:252+i,

Re: [R] Help with a repeating process

On Jun 24, 2012, at 11:37 AM, tbowlo wrote: Perhaps an easier coding that shows what I want would be this: for(i in 1:nrow(ret)) { + retT=ret[1+i:252+i,]} You should be thinking about what will happen in that indexing operation when the loop pushes 'i' above nrow(ret)-251 (You may want

Re: [R] Help with a repeating process

Perhaps an easier coding that shows what I want would be this: > for(i in 1:nrow(ret)) { + retT=ret[1+i:252+i,]} Thank you so much for your time and help! -- View this message in context: http://r.789695.n4.nabble.com/Help-with-a-repeating-process-tp4634336p4634339.html Sent from the R help mai