startberngamma: Rough parameter estimate for the Bernoulli-Gamma distribution

In qmap: Statistical Transformations for Post-Processing Climate Model Output

Rough parameter estimate for the Bernoulli-Gamma distribution

Description

Estimates rough starting values for the Bernoulli-Gamma distribution using the method of moments for the shape and the scale parameters. The probability of non-zero events is estimated as the fraction of values that are larger than zero.

Usage

startberngamma(x)

Arguments

x	numeric vector.

Value

A list containing:

prob	probability of non-zero event.
scale	scale parameter of the gamma distribution.
shape	shape parameter of the gamma distribution.

Note

In this package startberngamma is intended to be used in conjunction with fitQmapDIST (and mledist) with parameter distr="berngamma".

Author(s)

Lukas Gudmundsson

See Also

fitQmapDIST, berngamma, fitdist

Examples

gg <- rberngamma(n=300, prob=0.2, scale=1, shape=1)
startberngamma(gg)
mledist(gg,"berngamma",startberngamma(gg))

qmap documentation built on April 12, 2025, 1:51 a.m.