Re: [Numpy-discussion] : How to sum weighted matrices

2011-03-09 Thread shu wei
Thanks, it is very useful. On Wed, Mar 9, 2011 at 7:41 PM, Benjamin Root wrote: > This is a very good webpage that helped me when I was transitioning from > matlab to numpy. I hope it is helpful for you as well. > > http://www.scipy.org/NumPy_for_Matlab_Users > > Ben Root > > __

[Numpy-discussion] : How to sum weighted matrices

2011-03-09 Thread shu wei
-- Forwarded message -- From: shu wei Date: Wed, Mar 9, 2011 at 6:34 PM Subject: Re: [Numpy-discussion] How to sum weighted matrices To: Nicolas SCHEFFER Thanks very much. I just copied the code your guys gave me. Both of them work great I used to program in Matlab. not

Re: [Numpy-discussion] How to sum weighted matrices

2011-03-07 Thread shu wei
matrices = np.array([matrix1,matrix2]) > > weighted_sum = np.tensordot(weights, matrices, (0,0)) > > -- > > On Mon, Mar 07, 2011 at 06:16:15AM -0600, shu wei wrote: > >Hello all, > > > >I am new to python and numpy. > >My quest

[Numpy-discussion] How to sum weighted matrices

2011-03-07 Thread shu wei
Hello all, I am new to python and numpy. My question is how to sum up N weighted matrices. For example w=[1,2] (N=2 case) m1=[1 2 3, 3 4 5] m2=[3 4 5, 4 5 6] I want to get a matrix Y=w[1]*m1+w[2]*m2 by using a loop. My original problem is like this X=[1 2 3, 3 4 5, 4 5 6]