From 286c38bd1ae34870c40986e8ddebfd65d6e5049e Mon Sep 17 00:00:00 2001 From: Aleksandr Nogikh Date: Thu, 13 Jun 2024 20:30:13 +0200 Subject: pkg/stats: split out pkg/stats/sample This will reduce the number of dependencies needed for the main syzkaller tools. --- pkg/stats/sample/pvalue.go | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) create mode 100644 pkg/stats/sample/pvalue.go (limited to 'pkg/stats/sample/pvalue.go') diff --git a/pkg/stats/sample/pvalue.go b/pkg/stats/sample/pvalue.go new file mode 100644 index 000000000..acfff4bc4 --- /dev/null +++ b/pkg/stats/sample/pvalue.go @@ -0,0 +1,20 @@ +// Copyright 2021 syzkaller project authors. All rights reserved. +// Use of this source code is governed by Apache 2 LICENSE that can be found in the LICENSE file. + +package sample + +// TODO: I didn't find the substitution as of Feb 2023. Let's keep it as is while it works. +import "golang.org/x/perf/benchstat" // nolint:all + +// Mann-Whitney U test. +func UTest(old, new *Sample) (pval float64, err error) { + // Unfortunately we cannot just invoke MannWhitneyUTest from x/perf/benchstat/internal/stats, + // so we first wrap the data in Metrics. + mOld := benchstat.Metrics{ + RValues: old.Xs, + } + mNew := benchstat.Metrics{ + RValues: new.Xs, + } + return benchstat.UTest(&mOld, &mNew) +} -- cgit mrf-deployment