How to find indices of value that are greater than zero and less than 5
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Arsal15
il 15 Feb 2016
Commentato: Image Analyst
il 16 Feb 2016
I want to find the indices of a matrix and I am using this command.
if true
nhd = find(dist_mat1>0 & dist_mat1<6);
end
It is giving me a single column matrix. Is it possible that it can find the indices of all elements from first row, then second and then third. so that I have output variable index has three rows and each value in row shows the column number only.
like nhd = [1,3,4,7;1,2,3,6,7;1,4]
Is it possible ?
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/155046/image.png)
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Star Strider
il 15 Feb 2016
This works:
dist_mat1 = randi([0 7], 3, 7); % Create Matrix
[RowNrs,ColNrs] = find(dist_mat1>0 & dist_mat1<6);
[RowNrSort, Idx] = sort(RowNrs);
for k1 = 1:max(RowNrs)
Out{k1} = ColNrs(Idx(RowNrSort == k1));
end
4 Commenti
Star Strider
il 15 Feb 2016
I am not quite certain what you want to do.
The unique function — possibly with more than one output — could be an option.
Image Analyst
il 16 Feb 2016
If they're all integers, maybe take the histogram and find the bin where the count is the number of arrays you examined, which would mean that number was in each of the arrays you examined.
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