Evaluates the gamma cumulative distribution function.

Evaluates the inverse of the gamma cumulative distribution function.

Evaluates the gamma probability density function.

Computes estimates of the parameters of a GARCH (p,q) model.

Evaluates a general continuous cumulative distribution function given ordinates of the density.

Evaluates the inverse of a general continuous cumulative distribution function given ordinates of the density.

Gets the unique values of each classification variable.

Generates centered variables, squares, and crossproducts.

Retrieves a commonly analyzed data set.

Evaluates the geometric cumulative probability distribution function.

Evaluates the inverse of the geometric cumulative probability distribution function.

Evaluates the geometric probability density function.

Evaluates the inverse of a general continuous cumulative distribution function given in a subprogram.

Solves a triangular (possibly singular) set of linear systems and/or compute a generalized inverse of an upper triangular matrix.

Generates regressors for a general linear model.

Computes basic statistics from grouped data.

Performs a generalized sweep of a row of a nonnegative definite matrix.