How to find indices of value that are greater than zero and less than 5
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Arsal15
el 15 de Feb. de 2016
Comentada: Image Analyst
el 16 de Feb. de 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 ?
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Star Strider
el 15 de Feb. de 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 comentarios
Star Strider
el 15 de Feb. de 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
el 16 de Feb. de 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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