Re: [Numpy-discussion] reshape and ravel methods of arrays now return views or raise error

On 3/28/06, Zachary Pincus <zpincus@stanford.edu> wrote:

Let me give a more concrete example, pulled from some code I was actually using.

The code is obviously a bit flawed, but it worked fine with numpy up until today. Now it breaks when a and b aren't both c-strided: def distance_squared(a, b): return numpy.sum( (a.ravel() - b.ravel())**2 )

def distance_squared(a,b) return ((a - b)**2).sum() The function should probably throw an error if a and b don't have the same shape and order and now it does. I note that your original function was written for the old functional sum and attempts to be efficient. The new Numpy sum method make it much easier to do what you want. Thanks, Travis. Chuck