From c06f50d3054c9816f6cf202e5f01cf723916703c Mon Sep 17 00:00:00 2001
From: sharkdp <davidpeter@web.de>
Date: Mon, 7 Oct 2019 18:44:55 +0200
Subject: [PATCH] Add help text

---
 scripts/welch_ttest.py | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/scripts/welch_ttest.py b/scripts/welch_ttest.py
index d8a8097..ea6c657 100755
--- a/scripts/welch_ttest.py
+++ b/scripts/welch_ttest.py
@@ -1,11 +1,15 @@
 #!/usr/bin/python
 
+"""This script performs Welch's t-test on a JSON export file with two
+benchmark results to test whether or not the two distributions are
+the same."""
+
 import argparse
 import json
 import sys
 from scipy import stats
 
-parser = argparse.ArgumentParser()
+parser = argparse.ArgumentParser(description=__doc__)
 parser.add_argument("file", help="JSON file with two benchmark results")
 args = parser.parse_args()