Peter,

as the matrices in the list have the same shape, you can unlist them into an array and then use rowMeans.

HTH

Claudia

Am 15.03.2011 21:17, schrieb hihi:
Hi All,
is there any effiective and dense/compact method to calculate the mean of a 
list of - of course coincident - matrices on an element by element basis? The 
resulting matrix' [i, j]-th element is the mean of the list's matrices' [i, 
j]-th elements respectively...
Iterating by for statement is quite straightforward, but I am seeking for a 
more elegant solution, and my attempt with the apply family of functions did 
not work.

Thank you,
by
Peter

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