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annotate py/stats.py @ 55:e421ea2519ec

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dgamelaunch: define user/group by name instead of UID/GID. The user and group might not be created with the UID and GID expected, so it is better to use names. They can be changed to numeric values after installation.
author John "Elwin" Edwards
date Sun, 11 May 2014 08:32:31 -0700
parents c045d4dcf88a
children
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25843238434a Change the Python module's name back to rlgall.
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1 #!/usr/bin/python3
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2
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3 import math
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4 import psycopg2
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5 import rlgall
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6
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7 def makeExpPDF(lbd):
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8 def lpdf(x):
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9 return lbd * math.exp(-lbd * x)
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10 return lpdf
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11
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12 def makeExpCDF(lbd):
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13 def lcdf(x):
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14 return 1 - math.exp(-lbd * x)
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15 return lcdf
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16
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17 conn = psycopg2.connect("dbname=rlg")
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18 cur = conn.cursor()
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19 for game in rlgall.gamelist:
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20 query = "SELECT score FROM {0};".format(game.uname)
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21 cur.execute(query)
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22 scores = [ r[0] for r in cur.fetchall() ]
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23 count = len(scores)
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24 total = sum(scores)
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25 lbd = float(count) / total
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26 cdf = makeExpCDF(lbd)
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27 print("{0}: {1} games, average {2}".format(game.name, count, int(1/lbd)))
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28 for i in range(0, 10000, 1000):
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29 actual = len([ s for s in scores if i <= s < i + 1000 ])
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30 predicted = (cdf(i + 1000) - cdf(i)) * count
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c045d4dcf88a py/stats.py: only print 3 decimal places.
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31 print("{0:5}: {1:4} {2:.3}".format(i, actual, predicted))
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32 high = max(scores)
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33 print("Max: {0} {1:.3}\n".format(high, 1 - cdf(high)))
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34
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35 cur.close()
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36 conn.close()
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37 exit()