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

distribution {mlogit}

R Documentation

Functions used to describe the characteristics of estimated random parameters

Description

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.

Usage

med(x, ...)
stdev(x, ...)
rg(x, ...)
qrpar(x, ...)
prpar(x, ...)
drpar(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, ...)
## S3 method for class 'rpar'
stdev(x, norm = NULL, ...)
## 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,
`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,
`...`	further arguments.

Details

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