Class SampleVarianceCalculator

  • All Implemented Interfaces:
    Function<double[],​Double>

    public class SampleVarianceCalculator
    extends Object
    implements Function<double[],​Double>
    Calculates the sample variance of a series of data.

    The unbiased sample variance $\mathrm{var}$ of a series $x_1, x_2, \dots, x_n$ is given by: $$ \begin{align*} \text{var} = \frac{1}{n-1}\sum_{i=1}^{n}(x_i - \overline{x})^2 \end{align*} $$ where $\overline{x}$ is the sample mean. For the population variance, see PopulationVarianceCalculator.

    • Constructor Detail

      • SampleVarianceCalculator

        public SampleVarianceCalculator()