Performs a triplets test.

Performs nonparametric probability density function estimation by the kernel method.

Performs nonparametric probability density function estimation by the penalized likelihood method.

Estimates a probability density function at specified points using linear or cubic interpolation.

Difference a time series.

Computes the Dirichlet kernel.

See AMACH.

Uses Fisher’s linear discriminant analysis method to reduce the number of variables.

Computes Gaussian kernel estimates of a univariate density via the fast Fourier transform over a fixed interval.

Performs a linear or a quadratic discriminant function analysis among several known groups.

Performs a D‑square test.