R: mean from list
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, statistical.model at googlemail.com 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
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