How to find location/coordinates of NaN in a sort condition?

I have a matrix like this:

     3     2     3     6     2
     9     4   NaN     4     2
   NaN     3     2     4     3
     7     2   NaN     9     3
     7     1     8     2     4

So the location/coordinates NaN that will be out in a sort condition is(2,3),(3,1), and(4,3).

I've already try this code:

[I,J] = find(isnan(Data));

but the value does't well organized. is the any solution? thanks before :')

Answer 1

[Andrei Bobrov]

[ii jj] = find(isnan(Data));
outij = sortrows([ii jj],1);

OR

[jj ii] = find(isnan(Data.'))

[Jan]

Matrices are store in column order in Matlab. Therefore the output of FIND *is* well organized, but not in the order you expect.

[Isti]

thanks :)