cubevisual function

Plot an estimated CUBE model

Plotting facility for the CUBE estimation of ordinal responses.

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

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.

Returns

For a CUBE model fitted to ordinal, by default it returns a plot of the estimated $(1-\pi, 1-\xi)$ as a point in the parameter space, labeled with the estimated overdispersion $\phi$. Depending on csiplot and paiplot and on desired output, $x$ and $y$ coordinates may be set to $\pi$ and $\xi$, respectively.

Details

It represents an estimated CUBE model as a point in the parameter space with the overdispersion being labeled.

Examples

data(univer)
ordinal<-univer$global
cubevisual(ordinal,xlim=c(0,0.5),main="Global Satisfaction",
   ylim=c(0.5,1),cex=0.8,digits=3,col="red")