trcoef: Transform coefficients

In emdbook: Support Functions and Data for "Ecological Models and Data"

Transform coefficients

Description

Perform standard transformations of coefficients based on information encoded in the names or the transf attribute of the vector or list

Usage

trcoef(x, inverse = FALSE)

Arguments

x	A numeric vector of coefficients with names and/or a transf attribute
inverse	(logical) Perform inverse transform?

Details

If inverse=FALSE and coefficient names begin with "logit", "log", or "sqrt" the function will back-transform them (using plogis, exp, or squaring), strip the descriptor from the names, and set the transf attribute. Naturally, inverse=TRUE will do the opposite. If the transf attribute is all empty strings after an inverse transformation, it will be deleted.

Value

A vector of transformed variables with modified names and transf attributes.

Author(s)

Ben Bolker

Examples

x = c(loga=1,logitb=2,sqrtc=2)
trx = trcoef(x); trx
trcoef(trx,inverse=TRUE)

emdbook documentation built on July 9, 2023, 6:33 p.m.