MATLAB: How to find row/column indices having all values NaN

Question

I have a Matrix, where few rows/columns have NaN value corresponding to all the columns/rows respectively. I know how to remove these rows/columns: X=X(:,~all(is an(X))); But I want to know the indices of these rows/columns.

Can anyone please help me?

Answer 1

If x is your matrix, do you mean

find(all(isnan(x),2))

or

find(all(isnan(x),1))

HTH