DPQ (version 0.5-3)

DPQ-package: tools:::Rd_package_title("DPQ")

Description

tools:::Rd_package_description("DPQ")

Author

Principal author and maintainer: tools:::Rd_package_maintainer("DPQ")

Details

The DESCRIPTION file: tools:::Rd_package_DESCRIPTION("DPQ") 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.

See Also

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

Examples

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