Serhiy Storchaka added the comment: The proposed patch add two methods to the Random class and two module level functions: weighted_choice() and weighted_choice_generator().
weighted_choice(data) accepts either mapping or sequence and returns a key or index x with probability which is proportional to data[x]. If you need several elements with same distribution, use weighted_choice_generator(data) which returns an iterator which produces random keys or indices of the data. It is more faster than calling weighted_choice(data) repeatedly and is more flexible than generating a list of random values at specified size (as in NumPy). ---------- Added file: http://bugs.python.org/file31732/weighted_choice_generator.patch _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue18844> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
