[SciPy-User] Numpy/MATLAB difference in array indexing

Pauli Virtanen pav@iki...
Sun Mar 18 17:37:34 CDT 2012


18.03.2012 23:18, federico vaggi kirjoitti:
> I was trying to port some code from MATLAB to Scipy, and I noticed a
> slight bug in the functionality of numpy.tile vs repmat in matlab:
> 
> For example:
> 
> a = np.random.rand(10,2)
> 
> b = tile(a[:,1],(1,5))

a[:,1] is an 1-d array, and therefore considered as a (1, N) vector in
2-d context. This is not a bug --- the Numpy constructs do not always
map exactly to Matlab ones.

-- 
Pauli Virtanen



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