distribution: Functions used to describe the characteristics of estimated...

In mlogit: Multinomial Logit Models

Functions used to describe the characteristics of estimated random parameters

Description

Functions used to describe the characteristics of estimated random parameters

Usage

stdev(x, ...)

rg(x, ...)

med(x, ...)

## S3 method for class 'rpar'
mean(x, norm = NULL, ...)

## S3 method for class 'rpar'
med(x, norm = NULL, ...)

## S3 method for class 'rpar'
stdev(x, norm = NULL, ...)

## S3 method for class 'rpar'
rg(x, norm = NULL, ...)

## S3 method for class 'mlogit'
mean(x, par = NULL, norm = NULL, ...)

## S3 method for class 'mlogit'
med(x, par = NULL, norm = NULL, ...)

## S3 method for class 'mlogit'
stdev(x, par = NULL, norm = NULL, ...)

## S3 method for class 'mlogit'
rg(x, par = NULL, norm = NULL, ...)

qrpar(x, ...)

prpar(x, ...)

drpar(x, ...)

## S3 method for class 'rpar'
qrpar(x, norm = NULL, ...)

## S3 method for class 'rpar'
prpar(x, norm = NULL, ...)

## S3 method for class 'rpar'
drpar(x, norm = NULL, ...)

## S3 method for class 'mlogit'
qrpar(x, par = 1, y = NULL, norm = NULL, ...)

## S3 method for class 'mlogit'
prpar(x, par = 1, y = NULL, norm = NULL, ...)

## S3 method for class 'mlogit'
drpar(x, par = 1, y = NULL, norm = NULL, ...)

Arguments

x	a 'mlogit' or a 'rpar' object,
...	further arguments.
norm	the variable used for normalization if any : for the 'mlogit' method, this should be the name of the parameter, for the 'rpar' method the absolute value of the parameter,
par	the required parameter(s) for the 'mlogit' methods (either the name or the position of the parameter(s). If 'NULL', all the random parameters are used.
y	values for which the function has to be evaluated,

Details

'rpar' objects contain all the relevant information about the distribution of random parameters. These functions enables to obtain easily descriptive statistics, density, probability and quantiles of the distribution.

'mean', 'med', 'stdev' and 'rg' compute respectively the mean, the median, the standard deviation and the range of the random parameter. 'qrpar', 'prpar', 'drpar' return functions that compute the quantiles, the probability and the density of the random parameters (note that 'sd' and 'range' are not generic function in 'R' and that 'median' is, but without '...').

Value

a numeric vector for 'qrpar', 'drpar' and 'prpar', a numeric vector for 'mean', 'stdev' and 'med' and a numeric matrix for 'rg'.

Author(s)

Yves Croissant

See Also

[mlogit()] for the estimation of random parameters logit models and [rpar()] for the description of 'rpar' objects.

mlogit documentation built on June 10, 2025, 9:10 a.m.