CUB (version 1.1.5)

cubvisual: Plot an estimated CUB model

Description

Plotting facility for the CUB estimation of ordinal responses.

Usage

cubvisual(ordinal,csiplot=FALSE,paiplot=FALSE,...)

Value

For a CUB model fit to ordinal, by default it returns a plot of the estimated \((1-\pi, 1-\xi)\) as a point in the parameter space. Depending on csiplot and paiplot

and on desired output, \(x\) and \(y\) coordinates may be set to \(\pi\) and \(\xi\), respectively.

Arguments

ordinal

Vector of ordinal responses

csiplot

Logical: should \(\xi\) or \(1-\xi\) be the \(y\) coordinate

paiplot

Logical: should \(\pi\) or \(1-\pi\) be the \(x\) coordinate

...

Additional arguments to be passed to plot() and text(). Optionally, the number m of ordinal categories may be passed: this is recommended if some category has zero frequency.

Details

It represents an estimated CUB model as a point in the parameter space with some useful options.

Examples

data(univer)
ordinal<-univer$global
cubvisual(ordinal,xlim=c(0,0.5),ylim=c(0.5,1),cex=0.8,main="Global Satisfaction")