How to find correlation coefficient between two global maps

Hello,

I have two global datasets of dimensions 288(longitude) x192(latitude)

I would like to calculate the correlation coefficient between the two of these global spreads

When use corrcoef(A,B) I just get a matrix of NaN's

Is there another command I should use?

Thanks,

Melissa

Answer 1

[Walter Roberson]

Were all of the results NaN or only some of them?

If all of the results were NaN, then each of the two matrices A and B consisted of identical values (identical within the individual matrix).

If one of the entries was 1 and the other three were NaN, then if the 1 was in the upper left then A had at least two distinct entries, and if the 1 was in the lower right then B had at least two distinct entries.

[Melissa]

yes, all of the results were NaN. However, when I look at the two matrixes, I the values are not identical. Why else would it still be NaN?