This will subtract col 0 from all cols of a 2-d array:
# subtract col 0 from all cols
def ll2llr (m):
return m - m[:,0][:,np.newaxis]In general, how to subtract the (n-1)d slice at index 0 from all elements of an n-d array? (I think a 3d version is: m - m[:,:,0][:,:,np.newaxis] ) _______________________________________________ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion
