Mercurial > hg > rlgallery-misc

annotate py/stats.py @ 21:453278a81371

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Add tablerecent() so recent.cgi will work as before. Port the tablerecent() function, which reads the most recent games directly from the logfile instead of the database. This allows recent.cgi to show games immediately without waiting for the recorder to put them in the database.
author John "Elwin" Edwards <elwin@sdf.org>
date Mon, 17 Sep 2012 13:41:10 -0700
parents 5ba2123d2c20
children 25843238434a
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5ba2123d2c20 Put this project under version control, finally.
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1 import math
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2 import psycopg2
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3 import rlgalldb as rlgall
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4
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5 def makeExpPDF(lbd):
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6 def lpdf(x):
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7 return lbd * math.exp(-lbd * x)
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8 return lpdf
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9
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10 def makeExpCDF(lbd):
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11 def lcdf(x):
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12 return 1 - math.exp(-lbd * x)
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13 return lcdf
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14
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15 conn = psycopg2.connect("dbname=rlg")
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16 cur = conn.cursor()
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17 for game in rlgall.gamelist:
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18 query = "SELECT score FROM {0};".format(game.uname)
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19 cur.execute(query)
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20 scores = [ r[0] for r in cur.fetchall() ]
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21 count = len(scores)
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22 total = sum(scores)
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23 lbd = float(count) / total
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24 cdf = makeExpCDF(lbd)
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25 print "{0}: {1} games, average {2}".format(game.name, count, int(1/lbd))
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26 for i in range(0, 10000, 1000):
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27 actual = len([ s for s in scores if i <= s < i + 1000 ])
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28 predicted = (cdf(i + 1000) - cdf(i)) * count
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29 print "{0:5}: {1:4} {2}".format(i, actual, predicted)
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30 high = max(scores)
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31 print "Max: {0} {1}\n".format(high, 1 - cdf(high))
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32
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33 cur.close()
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34 conn.close()
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35 exit()