modFit: Brief Summary of Model Fit for a glm or loglm Object

In vcdExtra: 'vcd' Extensions and Additions

Brief Summary of Model Fit for a glm or loglm Object

Description

Formats a brief summary of model fit for a glm or loglm object, showing the likelihood ratio Chisq (df) value and or AIC. Useful for inclusion in a plot title or annotation.

Usage

modFit(x, ...)

## S3 method for class 'glm'
modFit(x, stats = "chisq", digits = 2, ...)

## S3 method for class 'loglm'
modFit(x, stats = "chisq", digits = 2, ...)

Arguments

x	A glm or loglm object
...	Arguments passed down
stats	statistics to print: one or more of "chisq", "aic"
digits	number to digits to use in the print method

Value

A character string containing the formatted values of the chosen statistics.

Author(s)

Michael Friendly

See Also

LRstats

Examples

data(Mental)
require(MASS)
(Mental.tab <- xtabs(Freq ~ ses + mental, data=Mental))
(Mental.mod <- loglm(~ses + mental, Mental.tab))
Mental.mod
modFit(Mental.mod)

# use to label mosaic()
mosaic(Mental.mod, main=paste("Independence model,", modFit(Mental.mod)))

vcdExtra documentation built on Dec. 11, 2025, 9:06 a.m.