Hi Cristi 2009/6/18 Cristi Constantin <darkg...@yahoo.com>: > I have a question about advanced indexing. > > I have 2 matrices : > >>>> > a=array([[ 0, 1, 2, 3, 4, 5], > [ 6, 7, 8, 9, 10, 11], > [12, 13, 14, 15, 16, 17], > [18, 19, 20, 21, 22, 23]]) > > b=array([[1, 0, 1], > [0, 2, 0], > [0, 0, 3]]) >>>> > > I want to put all NON-zero elements from array B into array A, but use > offset!
Here's a solution using views: offset = np.array([1,1]) slices = [slice(*x) for x in zip(offset, offset + b.shape)] c = a[slices] mask = (b != 0) c[mask] = b[mask] Regards Stéfan _______________________________________________ Numpy-discussion mailing list Numpy-discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion
