\Sexpr[results=rd,stage=build]{tools:::Rd_package_title("DPQ")}

Description

Details

The DESCRIPTION file: \Sexpr[results=rd,stage=build]{tools:::Rd_package_DESCRIPTION("DPQ")} \Sexpr[results=rd,stage=build]{tools:::Rd_package_indices("DPQ")}

An important goal is to investigate diverse algorithms and approximations of R's own density (d*()), probability (p*()), and quantile (q*()) functions, notably in “border” cases where the traditional published algorithms have shown to be suboptimal, not quite accurate, or even useless.

Examples are border cases of the beta distribution, or non-central distributions such as the non-central chi-squared and t-distributions.

Author(s)

Principal author and maintainer: \Sexpr[results=rd,stage=build]{tools:::Rd_package_maintainer("DPQ")}

See Also

The package DPQmpfr (not yet on CRAN), which builds on this package and on Rmpfr.

Examples

## Show problem in R's non-central t-distrib. density (and approximations):
example(dntJKBf)