Finding coordinates for matrix from another matrix

Hi,

I'm trying to find the coordinates of specific values in a 4-D matrix from a list of values. The 4D matrix is (3x2x17x17) and I have a list (23x1) with values that I would like to find the coordinates for in the 4D matrix.

ValsPure = ValsScore(3,2,:,:);

Sig_pval5 = AllTablesPure(AllTablesPure<0.05);
Sig_pval10 = AllTablesPure(AllTablesPure<0.1);

unique_sig_pval5 = unique(Sig_pval5);

for iiil = 1:length(unique_sig_pval5)
  a = unique_sig_pval5(iiil,1);
  [ii,jj]=find(a, AllTablesPure);
  out=[ii jj]
end

I've been trying in different ways to figure this out but I keep getting errors.

Thank you very much in advance.

Best regards,

Christian

Answer 1

[Andrew Newell]

I will assume that you want four-dimensional coordinates and that you want all the matches for each value. I suggest replacing

[ii,jj]=find(a, AllTablesPure);
out=[ii jj]

by

ii = find(a,AllTablesPure);
for jj = ii
  out = ind2sub(size(allTablesPure),jj)
end