Hi,

Is this an efficient way to swap two columns of a matrix ?
e.g. 1st column with the 5th

X = rand(10,5)
X[:,1], X[:,5] = X[:,5], X[:,1]

Thanks,
Jan


Dňa pondelok, 1. decembra 2014 11:58:24 UTC+1 Ján Dolinský napísal(-a):
>
> It's also possible that BLAS's swap would be no more efficient than 
>> writing it 
>> with loops in julia. 
>>
>> --Tim 
>>
>>
> Yes, I though so. I was just lazy to write it in case BLAS wrapper offers 
> the "swap" function but this seems not to be the case.  
>

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