From f49d1d9eb22f866587a39fe4daf855ebdc6734e0 Mon Sep 17 00:00:00 2001 From: Raymond Hettinger Date: Tue, 30 Nov 2021 18:25:54 -0600 Subject: [PATCH] bpo-45876: Have stdev() also use decimal specific square root. --- Lib/statistics.py | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/Lib/statistics.py b/Lib/statistics.py index 9f1efa21b15e3c..ff19ce9672d331 100644 --- a/Lib/statistics.py +++ b/Lib/statistics.py @@ -920,9 +920,8 @@ def stdev(data, xbar=None): raise StatisticsError('stdev requires at least two data points') T, ss = _ss(data, xbar) mss = ss / (n - 1) - if hasattr(T, 'sqrt'): - var = _convert(mss, T) - return var.sqrt() + if issubclass(T, Decimal): + return _decimal_sqrt_of_frac(mss.numerator, mss.denominator) return _float_sqrt_of_frac(mss.numerator, mss.denominator) pFad - Phonifier reborn

Pfad - The Proxy pFad of © 2024 Garber Painting. All rights reserved.

Note: This service is not intended for secure transactions such as banking, social media, email, or purchasing. Use at your own risk. We assume no liability whatsoever for broken pages.

Alternative Proxies:

Alternative Proxy

pFad Proxy

pFad v3 Proxy

pFad v4 Proxy