Variance Packages

Fligner-Killeen test for equal variances.

Compute a sample absolute Pearson product-moment correlation coefficient.

Compute an unbiased sample covariance matrix incrementally.

Compute the coefficient of variation (CV) incrementally.

Compute an exponentially weighted standard deviation incrementally.

Compute an exponentially weighted variance incrementally.

Compute a moving sample absolute Pearson product-moment correlation coefficient incrementally.

Compute a moving unbiased sample covariance incrementally.

Compute a moving coefficient of variation (CV) incrementally.

Compute an unbiased sample covariance incrementally.

Calculate the mean and standard deviation of a double-precision floating-point strided array using a two-pass algorithm.

Calculate the mean and variance of a double-precision floating-point strided array.

Calculate the mean and variance of a double-precision floating-point strided array using a two-pass algorithm.

Calculate the standard deviation of a strided array ignoring NaN values.

Calculate the standard deviation of a strided array ignoring NaN values and using a one-pass trial mean algorithm.

Calculate the standard deviation of a strided array ignoring NaN values and using a two-pass algorithm.

Calculate the standard deviation of a strided array ignoring NaN values and using a one-pass textbook algorithm.

Calculate the standard deviation of a strided array ignoring NaN values and using Welford's algorithm.

Calculate the standard deviation of a strided array ignoring NaN values and using a one-pass algorithm proposed by Youngs and Cramer.

Calculate the variance of a strided array ignoring NaN values.