[issue20389] clarify meaning of xbar and mu in pvariance/variance of statistics module

Irit Katriel added the comment: I've closed issue36099 as a duplicate of this. -- nosy: +iritkatriel ___ Python tracker ___ ___

[issue20389] clarify meaning of xbar and mu in pvariance/variance of statistics module

Change by Irit Katriel : -- keywords: +easy versions: +Python 3.10, Python 3.11, Python 3.9 -Python 3.4 ___ Python tracker ___ ___

[issue20389] clarify meaning of xbar and mu in pvariance/variance of statistics module

Nick Coghlan added the comment: Steven included some draft docs updates in a separate patch for issue 20481 - I have split those out and uploaded them here (since this discussion refers to the docstrings as well). -- keywords: +patch nosy: +ncoghlan Added file:

[issue20389] clarify meaning of xbar and mu in pvariance/variance of statistics module

Oscar Benjamin added the comment: I agree that the current wording in the doc-strings is ambiguous. It should be more careful to distinguish between mu : true/population mean xbar : estimated/sample mean I disagree that the keyword arguments should be made the same. There is an important

[issue20389] clarify meaning of xbar and mu in pvariance/variance of statistics module

Changes by Steven D'Aprano steve+pyt...@pearwood.info: -- assignee: - stevenjd nosy: +stevenjd ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue20389 ___

[issue20389] clarify meaning of xbar and mu in pvariance/variance of statistics module

Changes by Julian Taylor jtaylor.deb...@googlemail.com: -- components: +Library (Lib) ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue20389 ___ ___

[issue20389] clarify meaning of xbar and mu in pvariance/variance of statistics module

New submission from Julian Taylor: the pvariance and variance functions take the argument mu and xbar to pass the population and sample mean to avoid some recomputation. I assume the keyword arguments are different because the two means accepted are different, but the docstring does not

[issue20389] clarify meaning of xbar and mu in pvariance/variance of statistics module

Julian Taylor added the comment: xbar is the *sample* mean of course maybe with proper docstrings the two functions could also use the same keyword argument? -- ___ Python tracker rep...@bugs.python.org http://bugs.python.org/issue20389