tran_par: Transform a vector of parameters

In rettopnivek/mle: Convenience functions for maximum likelihood estimation

Description

A function to transforms or reverse transformations of parameter estimates, which is particularly useful to bound estimates to be positive or restricted to a set range.

Usage

tran_par(prm, type, reverse = F)

Arguments

prm	a vector of parameters.
type	a vector of the type of transformation to apply to each parameter, where... 0 = no transformation; 1 = exponentiation; 2 = the logistic transform; 3 = the inverse.
reverse	a logical value; if true, reverses the transformation specified by type.

Value

A vector of transformed or reversed-transformed parameters.

Examples

prm = c( 1, -1, 0, .5 )
prm_star = tran_par( prm, 0:3 )
prm_star
prm == tran_par( prm_star, 0:3, reverse = T )

rettopnivek/mle documentation built on May 5, 2019, 5:54 p.m.