27 lines
650 B
Python
27 lines
650 B
Python
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#!/usr/bin/python3
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# -*- coding:utf-8 -*-
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import csv
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import math
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import random
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import sys
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def create_bayes_nasty_data(filename):
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with open(filename, 'w') as f:
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writer = csv.writer(
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f, delimiter=('\t' if filename.endswith('.tsv') else ','))
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for i in range(100):
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x = random.uniform(-1.0, 1.0)
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y = random.uniform(-1.0, 1.0)
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p = abs(x-y) / abs(x+y)
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# for i in range(2):
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# p = -2 * p**3 + 3 * p**2
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v = 1 if random.random() > p else 0
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writer.writerow([v, x, y])
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if __name__ == '__main__':
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create_bayes_nasty_data(sys.argv[1])
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