great!! thanks very much, mean(unlist(lapply(listdata, function(z) z$c))) works well. and what about getting the average table $a (displaying the average elements across all 1000 matrix)? could you please help me? I am struggling with this...
thanks in advance Roberto mean(unlist(lapply(x, function(z) z$d))) should do the trick On Sun, 12 Feb 2006 20:06:12 +0000, [EMAIL PROTECTED] wrote: > hi all, > I have a simple problem that i am not able to solve. I've a list called > datalist with the following structure: > > [...] > > [[10]] > [[10]]$a > > -1 0 1 > -1 31 5 2 > 0 6 7 5 > 1 1 7 36 > > [[10]]$b > > -1 0 1 > -1 31 5 2 > 0 6 7 5 > 1 1 7 36 > > [[10]]$c > [1] 0.855 > > [[10]]$d > [1] 0.855 > > [...] > > with [[1]] ... [[100]]. How can i get the mean value of datalist[[x]]$d, > where x represents all elements from 1 to 1000 ? > > thanks in advance!!!! > > Roberto Furlan > University of Turin > > ---------------------------------------- > La mia Cartella di Posta in Arrivo è protetta da SPAMfighter > 205 messaggi contenenti spam sono stati bloccati con successo. > Scarica gratuitamente SPAMfighter! > > ______________________________________________ > 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 > > > Rajarshi Guha <[EMAIL PROTECTED]> <http://jijo.cjb.net> ---------------------------------------- La mia Cartella di Posta in Arrivo è protetta da SPAMfighter 205 messaggi contenenti spam sono stati bloccati con successo. Scarica gratuitamente SPAMfighter!
______________________________________________ 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