Hi All, I think it would enhance broadcasting if functions like sum, mean, etc didn't change the number of dimensions. For example, suppose one wanted to subtract the mean along dimension 2 from the same axis of the original array, then something like
In [44]: a = ones((2,3,4,5)) In [45]: a -= a.mean(2) would do the trick. Similar modifications might also suit functions of the argmax, argmin, argsort type and allow a common argtake function that would allow one to take along a specified axis, making easy something that is somewhat complicated at the moment. The main drawback that I see is that scalars would no longer be 0D, but that could be special cased as scalars will broadcast correctly no matter the ndim. Chuck
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