CODEWITHSUNDEEP
matlab
Ben
Ben

Reputation: 342

MATLAB List values above threshold

I have a 3D matrix. I can use the below code to find the number of elements above 1.61. How can I actually list the elements that are above 1.61 and show what value they are? for instance, if I have a value of 8.1 and 9.1, I would like Matlab to tell me those two values. Can I do that? 

for i = 1:5
     A = ans.atom_data(:,5,i);
     count(i,:) = sum(A(:)>1.61)

end

Upvotes: 0

Views: 538

Answers (1)

Luis Mendo
Luis Mendo

Reputation: 112659

If you only want to know the values, use logical indexing, like this:

result = A(A>1.61);

If you want to obtain the result for each third-index-layer of a 3D array B, you can do it with cells:

result = cellfun(@(x) x(x>1.61), squeeze(mat2cell(B,size(B,1),size(B,2),ones(1,size(B,3)))),'uni',0);

Then result{1} gives the values corresponding to B(:,:,1), etc.

Upvotes: 2

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