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phobson/accerlation.py

Created August 9, 2012 19:30
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acceleration
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accerlation.py
import numpy as np
def acceleration(data):
SSD = np.sum((data.mean() - data)**3)
SCD = np.sum((data.mean() - data)**2)
# catch to make sure SCD isn't zero
if SCD == 0.0:
SCD = 1e-12
acc = SSD / (6 * SCD**1.5)
return acc
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