How to sum matrices in an array

[Julius Owusu]

Hello,
I am new to mata. I made an array of matrices in mata and I want to sum all the matrices in the array.
In R, the function apply(x, c(1,2), sum) does this.
Can anyone here help.
Thank you!

[Mike Lacy]

I find your question very hard to understand, since there are not any three dimensional matrices in Mata, and at least I have not heard the terminology "array of matrices" in a Mata context. Show us (using, perhaps, -mata describe-) how you have set up your array of matrices. Then clarify what you mean by "sum all the matrices.?" Do you mean, find the sum of all the elements in *each* of the matrices? Note that many (most?) of us are not R users, so describing what the R construct is does not help much.

[John Mullahy]

Julius: Are you referring to an associative array

help mf_asarray

or to something else?