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| author | Nick Coghlan <ncoghlan@gmail.com> | 2014-02-08 09:58:04 (GMT) |
|---|---|---|
| committer | Nick Coghlan <ncoghlan@gmail.com> | 2014-02-08 09:58:04 (GMT) |
| commit | 73afe2a972e30a3e0f87401be2fa38c67e2cb964 (patch) | |
| tree | bf900c405b1584f00248558dad103050d5a31aaa /Doc/library/statistics.rst | |
| parent | 57e41277813163a90129a8c4d5f62f0ca68793b6 (diff) | |
| download | cpython-73afe2a972e30a3e0f87401be2fa38c67e2cb964.zip cpython-73afe2a972e30a3e0f87401be2fa38c67e2cb964.tar.gz cpython-73afe2a972e30a3e0f87401be2fa38c67e2cb964.tar.bz2 | |
Close #20481: Disallow mixed type input in statistics
The most appropriate coercion rules are not yet clear, so simply
disallowing mixed type input for 3.4.
(Committed on Steven's behalf)
Diffstat (limited to 'Doc/library/statistics.rst')
| -rw-r--r-- | Doc/library/statistics.rst | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/Doc/library/statistics.rst b/Doc/library/statistics.rst index e6c5959..4e77838 100644 --- a/Doc/library/statistics.rst +++ b/Doc/library/statistics.rst @@ -20,6 +20,16 @@ This module provides functions for calculating mathematical statistics of numeric (:class:`Real`-valued) data. +.. note:: + + Unless explicitly noted otherwise, these functions support :class:`int`, + :class:`float`, :class:`decimal.Decimal` and :class:`fractions.Fraction`. + Behaviour with other types (whether in the numeric tower or not) is + currently unsupported. Mixed types are also undefined and + implementation-dependent. If your input data consists of mixed types, + you may be able to use :func:`map` to ensure a consistent result, e.g. + ``map(float, input_data)``. + Averages and measures of central location ----------------------------------------- |