Exemple #1
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 def kurtosis_custom(column, mean, count):
     return ((count*df_sum(df_pow(column - mean, int(4)))) / df_pow(df_sum(df_pow(column - mean, int(2))),2)) -3
Exemple #2
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 def skewness_custom(column, mean, count):
     return ((np.sqrt(count) * df_sum(df_pow(column - mean, int(3)))) / df_pow(sqrt(df_sum(df_pow(column - mean, int(2)))),3))
Exemple #3
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 def variance_custom(column, mean, count):
     return df_sum(df_pow(column - mean, int(2))) / float(count-1)
Exemple #4
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 def kurtosis_custom(column, mean, count):
     return ((count*df_sum(df_pow(column - mean, int(4)))) / df_pow(df_sum(df_pow(column - mean, int(2))),2)) -3
Exemple #5
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 def skewness_custom(column, mean, count):
     return ((np.sqrt(count) * df_sum(df_pow(column - mean, int(3)))) / df_pow(sqrt(df_sum(df_pow(column - mean, int(2)))),3))
Exemple #6
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 def variance_custom(column, mean, count):
     return df_sum(df_pow(column - mean, int(2))) / float(count-1)