From: tomás zerolo <tomas@tuxteam.de>
Date: Sun, 20 Nov 2022 15:35:22 +0000 (+0100)
Subject: Two off-by-one errors
X-Git-Url: http://git.tuxteam.de/gitweb/?a=commitdiff_plain;h=97cfeebd846825a3d0b922b080df3b8ca5d755e8;p=susannes-git%2Fmathe%2Fstats%2Fbernoulli.git

Two off-by-one errors
---

diff --git a/coinflip-histo.py b/coinflip-histo.py
index 24dfc9a..2a737ce 100755
--- a/coinflip-histo.py
+++ b/coinflip-histo.py
@@ -5,7 +5,7 @@ from random import random
 import matplotlib.pyplot as plot
 
 def flipcoins (n):
-  return [int(2*random()) for i in range(n-1)]
+  return [int(2*random()) for i in range(n)]
 
 if len(sys.argv) != 3:
   print(f"Usage: {sys.argv[0]} <flips> <repeats>\n")
@@ -14,7 +14,7 @@ if len(sys.argv) != 3:
 flips = int(sys.argv[1])
 repeats = int(sys.argv[2])
 
-vals = [sum(flipcoins(flips)) for i in range(repeats - 1)]
+vals = [sum(flipcoins(flips)) for i in range(repeats)]
 
 plot.hist(vals, bins=flips, align='left')
 plot.show()