On Tue, 18 Mar 2008, Chris Withers apparently wrote: > Say I have an aribtary number of arrays: > arrays = [array([1,2,3]),array([4,5,6]),array([7,8,9])] > How can I sum these all together?
Try N.sum(arrays,axis=0). But must they be in a list? An array of arrays (i.e., 2d array) is easy to sum. > My only solution so far is this: > sum = arrays[0] > for a in arrays[1:]: > sum += a > ...which is ugly :-S And changes the first array! Cheers, Alan Isaac _______________________________________________ Numpy-discussion mailing list Numpy-discussion@scipy.org http://projects.scipy.org/mailman/listinfo/numpy-discussion
