Is there a nice way to make N.array([0.0,1.0,2.0,3.0]) into N.array([-1.0,0.0, 1.0,2.0,3.0, 4.0])? With regular lists in Python, I would write [-1.0] +[0.0,1.0,2.0,3.0] + [4.0]. I can only imagine multiple line things with reshape and friends, but maybe there is a better answer. Thanks!