public class PopulationVarianceCalculator extends Object implements Function<double[],Double>
The unbiased population variance $\mathrm{var}$ of a series $x_1, x_2, \dots, x_n$ is given by:
$$
\begin{align*}
\text{var} = \frac{1}{n}\sum_{i=1}^{n}(x_i - \overline{x})^2
\end{align*}
$$
where $\overline{x}$ is the sample mean. For the sample variance, see SampleVarianceCalculator.
| Constructor and Description |
|---|
PopulationVarianceCalculator() |
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