betareg (version 1.2.1)

envelope.beta: Half-Normal Plot of Standardized and Deviance Residuals

Description

Two plots are provided together with an envelope: A Half-Normal plot of standardized residuals and a Half-Normal plot of deviance residuals.

Usage

envelope.beta(model=fit.model,sim=100,conf=.90, pch="+",font.main=1, 
cex.main=1.5, type = c("standardized","deviance"))

Arguments

model

Fitted model using betareg

sim

The number of simulations used to produce the confidence bounds

conf

The confidence level

pch

Determines if the points are presented as "+" or "-"

font.main

Determines the type of the font in the main title

cex.main

The size of the font in the main title

type

Determines if the type of the residual is "standardized" or "deviance"

References

FERRARI, S.L.P., CRIBARI-NETO, F. (2004). Beta regression for modeling rates and proportions. Journal of Applied Statistics, v. 31, n. 7, p. 799-815.

See Also

betareg, summary.betareg, predict.betareg, residuals.betareg

Examples

data(pratergrouped)
fit <- betareg(oil ~ batch1 + batch2 + batch3 + batch4 + batch5 + 
batch6 + batch7 + batch8 + batch9 + temp, data=pratergrouped)
envelope.beta(fit)