when i execut i got an error ??? Undefined function or method 'randperm' for input arguments of type 'double'. Error in ==> ant at 26 tour(ic,:)​=randperm(​Ncity);

2013 8 25
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Image Analyst
Image Analyst 2013-8-25

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>> which -all randperm
and tell us what it says. Most likely you have some other randperm that has blown away the built-in one (i.e. is being used in precedence to the built in one), or somehow you deleted the built-in randperm.

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