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.

What are other people's thoughts on this? bincount is in C so it'll be a slight 
pain to do, however I'd be willing to do it if the patch has a reasonable 
chance of being accepted.

David


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