How to find indices of value that are greater than zero and less than 5
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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 ?
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Accepted Answer
Star Strider
on 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 Comments
Star Strider
on 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
on 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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