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Count the index of the array

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Hi, I have a array like below: [0 0 0 0 0 0 0 0 0 10 0 0 0 0 15 0 17]
I want count how many numbers >0 in the array (like in this case count is 3 (because 10,15,&17). Can some please help me how to count this in matlab. Thanks in advance

Accepted Answer

Azzi Abdelmalek
Azzi Abdelmalek on 20 Dec 2014
If your array doesn't contain negative numbers
a=[0 0 0 0 0 0 0 0 0 10 0 0 0 0 15 0 17]
out=nnz(a)
  2 Comments
Mekala balaji
Mekala balaji on 20 Dec 2014
Great Thank you sir

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More Answers (2)

Shoaibur Rahman
Shoaibur Rahman on 20 Dec 2014
A=[0 0 0 0 0 0 0 0 0 10 0 0 0 0 15 0 17];
sum(A>0)

Javaid Iqbal
Javaid Iqbal on 3 Dec 2018
n=numel(A);
  1 Comment
madhan ravi
madhan ravi on 3 Dec 2018
no this would give you total number of elements in the array

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