finding column # that contains an integer in a matrix

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mehrdad asadi 2015-7-7

评论： mehrdad asadi 2015-7-7

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

James Tursa 2015-7-7

编辑：James Tursa 2015-7-7

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

James Tursa 2015-7-7

indices = find(any(X==5,2)); % rows that have the number 5 in them

mehrdad asadi 2015-7-7

got it!

thanks

MATLAB Language Fundamentals Matrices and Arrays Matrix Indexing

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