Correlation between two matrices

I have two matrices A and B both with same siez, i.e. 119*173.

What is the best way to find the correlation between those two?

I have tried couple of options, corr, corr2, corcoef etc.

It just gives a 2*2 NaN matrix, A and B have a lot of NaN's how to fix this

[KSSV]

https://in.mathworks.com/matlabcentral/answers/309798-corr2-in-matlab-returns-nan

[Sophia]

What i understood from the link is it is not going to work for zeros and NaN's, I also checked at normxcorr2 but that's not somthing that i want.

Am i missing something from the link.

[Daniel M]

One of these should solve it for you

https://www.mathworks.com/matlabcentral/answers/332174-compute-correlation-of-two-nan-containing-vectors#answer_260560

https://www.mathworks.com/matlabcentral/answers/217408-find-correlation-between-two-matrices-with-varying-nan-coordinates#answer_179537

[the cyclist]

Can you also please be more clear about what you mean by the "correlation between two matrices"?

Do you expect one correlation coefficient, treating the matrices as 20,587x1 vectors that are simply shaped as 119x173?

Or do you expect 173 correlation coefficients -- one for each 119x1 column vector?

Or something else?

Answer 1

[the cyclist]

One possibility, which ignores any element for which A or B is NaN, is

corrcoef(A,B,'rows','complete')