Alextp added the comment: I wrote not ok formula for median_grouped. But i can't get idea from source. THIS SHOWS that source code is NOT ok doc, even student can't get it e.g. pvariance. Calculates population variance of iterable. It's given by formula:
pvariance([x1, x2, ..., xN]) = ((x1 - M)**2 + ... + (xN - M)**2) / N, where M is mean of all values: M = (x1 + ... + xN) / N ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue21046> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
