multi-dimensional array - summing the layers (combining)

is there a way to combine (or sum) the layers of a multi-dimensional array

essentially, I have an array of multiple layers

p1(i,j,k)

and it outputs

val(:,:,1) =

1 2 3

4 5 6

val(:,:,2) =

2 2 2

2 2 2

What I'd like to do is, sum each layer, and then turn it into:

3 4 5

6 7 8

is there a function that can "sum" all the layers in an array. Essentially, I'm flattening the array, making it 2D.

Many thanks!

Answer 1

[DGM]

To sum along a given dimension:

dim3sum = sum(val,3);

[philio63]

beautiful!

Thank you very much!