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mrjbq7/data.npy

Created October 24, 2012 18:46
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pandas bug: rolling_sum and rolling_mean
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test.py
import numpy as np
import pandas
data = np.load('data.npy')
assert all(data >= 0)
sums = pandas.rolling_sum(data, 2, min_periods=1)
zero = np.where(sums < 0)[0]
assert len(zero) == 0, zero
mean = pandas.rolling_mean(data, 2, min_periods=1)
zero = np.where(mean < 0)[0]
assert len(zero) == 0, zero
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