[Numpy-discussion] stacking scalars with column vector
Santhosh R
san.programming at gmail.com
Sun Dec 4 13:41:04 EST 2011
Hi ,
I am trying to learn python to convert some of my mlab codes to python.Am
new to python.Some help here would be appreciated
I am trying to make a column vector by stacking two scalars-->Xstart,Xend
and second column of n X 2 2Darray-->A
In matlab the code is b=[Xstart;A(:,1);Xend]
I have made the following code
import numpy as np
x=np.array([[Xstart]])
arr_temp=np.array([A[:,0]])
x=np.vstack((x,arr_temp.T))
x=np.vstack((x,[[Xend]]))
This works, but is there a more elegant way of doing this.
Also if i define arr_temp as arr_temp=A[:,0], the array arr_temp which is
supposed to be of shape (n,1) shows as (n,) .Why is this
Thanks
Santhosh
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