GetEstimate_LMOM: L-Moment estimate of a distribution

In HydroPortailStats: 'HydroPortail' Statistical Functions

L-Moment estimate of a distribution

Description

Returns an estimate of a distribution using the method of L-moments. Note that for some distributions, this is not strictly speaking the L-moment estimate: For LogNormal and LogPearsonIII, the L-moment estimate of log(data) is used.

Usage

GetEstimate_LMOM(y, dist)

Arguments

y	numeric vector, data
dist	character, distribution name

Value

A list with the following components:

par	numeric vector, estimated parameter vector.
obj	numeric, objective fonction (NA for this estimate)
ok	logical, did computation succeed?
err	integer, error code (0 if ok)
message	error message

Examples

y=c(9.2,9.5,11.4,9.5,9.4,9.6,10.5,11.1,10.5,10.4)
GetEstimate_LMOM(y,'Normal')
GetEstimate_LMOM(y,'LogNormal')
GetEstimate_LMOM(y,'Gumbel')
GetEstimate_LMOM(y,'GEV')
GetEstimate_LMOM(y,'Poisson')

HydroPortailStats documentation built on Sept. 12, 2024, 9:36 a.m.