What meaning is '[: , None]'?
Rustom Mody
rustompmody at gmail.com
Sat Jan 2 10:41:51 EST 2016
On Saturday, January 2, 2016 at 6:14:24 PM UTC+5:30, Robert wrote:
> Hi,
>
> I read a code snippet, in which object w_A is:
>
>
> w_A
> Out[48]: array([ 0.10708809, 0.94933575, 0.8412686 , 0.03280939, 0.59985308])
>
>
> Then, I don't know what is '[: ' below:
> vs_A = w_A[:, None] * xs
>
>
> I don't find the answer after searching around
> Could you explain above code to me?
> Thanks,
You probably want to search for 'slice/slicing' and 'indexing'
I get this
http://docs.scipy.org/doc/numpy-1.10.0/reference/arrays.indexing.html
[Note: I dont know much about this]
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