pe3: Pearson Type III distribution

In SCI: Standardized Climate Indices Such as SPI, SRI or SPEI

Description

Density, distribution and quantile function of the Pearson Type III distribution

Usage

dpe3(x, shape, scale, location)
ppe3(q, shape, scale, location)
qpe3(p, shape, scale, location)

Arguments

x, q	vector of quantiles.
p	vector of probabilities.
shape	shape parameter
scale	scale parameter
location	location parameter

Details

The functions of the pe3 family are a reimplementation of the Pearson Type III Distribution in the lmomco package, making the code compatible with the standard nomenclature for distributions in R. The original functions in lmomco are pdfpe3 (density function), quape3 (quantile function) and cdfpe3 (distribution function).

Value

dpe3 gives the density (pdf), ppe3 gives the distribution function (cdf), and qpe3 gives the quantile function (inverse cdf).

Author(s)

James Stagge & Lukas Gudmundsson

References

Asquith, W.H., 2013: lmomco – L-moments, trimmed L-moments, L-comoments, censored L-moments, and many distributions. R package version 1.7.8 , Tech University, Lubbock, Texas.

Examples

dpe3(1, shape=1, scale=2, location=3)

Example output

Loading required package: fitdistrplus
Loading required package: MASS
Loading required package: survival
Loading required package: lmomco
[1] 0.180447

SCI documentation built on May 2, 2019, 3:04 a.m.