finding column # that contains an integer in a matrix

2015 7 7
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hi,
I want to find indices of columns of a matrix which contains a specific integer.
say magic(5), how can I find column numbers that has got '5' in it if it exists!
thanks,
Mehrdad

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James Tursa
James Tursa 2015-7-7
编辑：James Tursa 2015-7-7

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X = your matrix;
indices = find(any(X==5)); % columns that have the number 5 in them

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mehrdad asadi
mehrdad asadi 2015-7-7
hi James,
thanks it works! I used to use indices = find(X==5) that didn't work and faced with an error that u can't use 'find()' in this way.
thank you anyway,
mehrdad asadi
mehrdad asadi 2015-7-7
another question! what about searching in rows? I just wanna know ;)
James Tursa
James Tursa 2015-7-7
indices = find(any(X==5,2)); % rows that have the number 5 in them

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