jqpd {rjqpd}R Documentation

Calculates the parameters of the Johnson Quantile-Parameterised Distribution

Description

Calculates the parameters of the Johnson Quantile-Parameterised Distribution

Usage

jqpd(x, lower = 0, upper = Inf, alpha = 0.1)

Arguments

x

a length 3 numeric vector containing the symmetric percentile triplet values used to parameterise the distribution.

lower

a real number specifying the lower bound of the distribution. (default: 0)

upper

a real number specifying the upper bound of the distribution. A value of Inf indicates a semi-bounded distribution. (default: Inf)

alpha

a real number (between 0 and 0.5) used to describe the symmetric percentile triplet for which the quantile values provided in 'x' correspond. For instance, alpha = 0.1 (default value) indicates the percentiles used are [0.1, 0.5, 0.9].

Value

A jqpd object with elements

x

a length 3 numeric vector containing the symmetric percentile triplet values used to parameterise the distribution

alpha

a real number (between 0 and 0.5) used to describe the symmetric percentile triplet for which the quantile values provided in 'x' correspond

lower

a real number specifying the lower bound of the distribution

upper

a real number specifying the upper bound of the distribution

c

distribution parameter

n

distribution parameter

eta

distribution parameter

delta

distribution parameter

lambda

distribution parameter

k

distribution parameter

Examples

theta <- jqpd(c(0.32, 0.40, 0.6), 0, 1, alpha = 0.1)

[Package rjqpd version 0.2.3 Index]