[Numpy-discussion] array manipulation
Alan G Isaac
Tue Aug 17 05:50:54 CDT 2010
On 8/17/2010 12:13 AM, Alex Ter-Sarkissov wrote:
> I have an array (say, mat=rand(3,5)) from which I 'pull out' a row
> (say, s1=mat[1,]). The problem is, the shape of this row s1 is not
> [1,5], as I would expect, but rather [5,], which means that I can't,
> for example, concateante mat and s1 rowwise.
Your ``mat`` is an array.
You get the behavior you seek with NumPy matrices
(although I personally consider is a misfeature).
>>> m = np.mat(mat)
matrix([[ 0.95488909, 0.55174423, 0.12103472, 0.15482402, 0.71286625]])
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