number of non-nan values across each element in n-dimensional matrix

Hello all,

I would like to know how to count the number of non-nan values across each element in a 192x144x8766 matrix. Where the dimensions is representative of days (8766 days). I want a final matrix with the number of non-Nan values for each element across all 8766 days.

For example, count of # of non-nan in 1x1x1:8766 so that I can get a fraction of non-nan values over the 8766 days per element (cell in the matrix).

Thank you for any help on this.

[James Tursa]

You want the number of non-NaN's in each 192x144 slice? So you would end up with a 8766 element vector? Or do you expect to end up with a 192x144 element matrix result?

[Vesp]

I would like to end up with a 192x144 element matrix result. So that the number in the final matrix is reflective of the total non-nan values in each cell across all 8766 slices.

Thank you for your response.

Answer 1

[James Tursa]

Is this what you want?

x = your 192x144x8766 array
result = sum(~isnan(x),3);

[Vesp]

This worked perfectly! Thank you very much for your timely response :)

Answer 2

[Azzi Abdelmalek]

b=sum(isnan(A),1)
b=sum(b,2)