[Numpy-discussion] bincount() optional length argument

Robert Kern robert.kern@gmail....
Fri Aug 27 16:15:12 CDT 2010

On Fri, Aug 27, 2010 at 16:13, David Warde-Farley <dwf@cs.toronto.edu> wrote:
> I've been using bincount() in situations where I always want the count vector to be a certain fixed length, even if the upper bins are 0. e.g. I want the counts of 0 through 9, and if there are no 9's in the vector I'm counting, I'd still like it to be at least length 10. It's kind of a pain to have to check for this case and concatenate 0's, nevermind an extra array allocation.
> How would people feel about an optional argument to support this behaviour? I'd be happy with either a "minlength" or an "exactly this length" with values above this range being ignored, but it seems like the latter might be useful in more cases.

minlength works for me.

Robert Kern

"I have come to believe that the whole world is an enigma, a harmless
enigma that is made terrible by our own mad attempt to interpret it as
though it had an underlying truth."
  -- Umberto Eco

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