probit_link: Probit link function with guessing and lapsing rates

In modelfree: Model-free estimation of a psychometric function

Description

Probit link for use with GLM functions. The guessing and lapsing rate are fixed to values given in lims, hence link is a function of only one variable

Usage

probit_link( guessing = 0, lapsing = 0 )

Arguments

guessing	guessing rate; default is 0
lapsing	lapsing rate; default is 0

Value

link	Probit link for use in all GLM functions

Examples

data( "01_Miranda" )
x <- example01$x
r <- example01$r
m <- example01$m
glmdata <- data.frame( cbind( r/m ,m , x ) )
names( glmdata ) <- c( "resp", "m", "x" )
glmformula <- c( "resp ~ x" )
userlink<-probit_link( 0.1, 0.1 )
fit <- glm( glmformula, data = glmdata, weights = m, family = binomial( userlink ) )

modelfree documentation built on May 2, 2019, 6:07 p.m.