gsl_wrap: Internal C++ wrappers for GSL
In qfratio: Moments and Distributions of Ratios of Quadratic Forms Using Recursion

hyperg_1F1_vec_b

R Documentation

Internal C++ wrappers for GSL

Description

These are internal C++ functions which wrap hypergeometric functions from GSL with vectorization. These are for particular use cases in this package, and direct access by the user is not assumed.

Usage

hyperg_1F1_vec_b(a, bvec, x)

hyperg_2F1_mat_a_vec_c(Amat, b, cvec, x)

Arguments

`a`, `b`	Parameters of hypergeometric functions; passed as `double`
`bvec`, `cvec`	Parameters of hypergeometric functions; passed as `Rcpp::NumericVector`
`x`	Argument of hypergeometric functions; passed as `double`
`Amat`	Parameter of hypergeometric functions; passed as `Rcpp::NumericMatrix`. Dimension must be square of the length of `cvec`.

Value

Return a list via Rcpp::List of the following:

$val: Evaluation result, numeric
$err: Absolute error, numeric
$status: Error code, integer

In hyperg_1F1_vec_b, these are vectors from Rcpp::NumericVector and Rcpp::IntegerVector, whereas in hyperg_2F1_mat_a_vec_c, they are matrices from Rcpp::NumericMatrix and Rcpp::IntegerMatrix.

Functions

hyperg_1F1_vec_b(): wrapper of gsl_hyperg_1F1_e(), looping along bvec
hyperg_2F1_mat_a_vec_c(): wrapper of gsl_hyperg_2F1_e(), looping along Amat and recycling cvec