atoti.array.var()

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atoti.array.var(measure, /, *, mode=‘sample’)

• Parameters:
  • measure (VariableMeasureConvertible) – The measure to get the variance of.
  • mode (Literal [ ‘sample’ , ‘population’ ]) – One of the supported modes:
    • The sample variance, similar to Excel’s VAR.S, is $\frac{\sum_{i=1}^{n} (X_i - m)^{2}}{n - 1}$ where m is the sample mean and n the size of the sample. Use this mode if the data represents a sample of the population.
    • The population variance, similar to Excel’s VAR.P is $\frac{\sum_{i=1}^{n}(X_i - m)^{2}}{n}$ where m is the mean of the Xi elements and n the size of the population. Use this mode if the data represents the entire population.
• Return type: MeasureDefinition