atoti.array.var()#
- atoti.array.var(measure, /, *, mode='sample')#
Return a measure equal to the variance of the elements of the passed array measure.
- 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’sVAR.S
, is \(\frac{\sum_{i=1}^{n} (X_i - m)^{2}}{n - 1}\) wherem
is the sample mean andn
the size of the sample. Use this mode if the data represents a sample of the population.The
population
variance, similar to Excel’sVAR.P
is \(\frac{\sum_{i=1}^{n}(X_i - m)^{2}}{n}\) wherem
is the mean of theXi
elements andn
the size of the population. Use this mode if the data represents the entire population.
- Return type:
MeasureDescription