ordFit: Fit Statistics for Proportional Odds Logistic Regression...

Description Usage Arguments Value Author(s) References Examples

Description

For objects of class polr, it calculates a number of fit statistics and specification tests.

Usage

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   ordfit(obj)

Arguments

obj

A model object of class polr.

Value

An object of class ordfit which is a matrix containing statistics and specification tests.

Author(s)

Dave Armstrong (UW-Milwaukee, Department of Political Science)

References

Lipsitz, S. R., Fitzmaurice, G. M. and Mohlenberghs, G. 1996. Goodness-of-fit Tests for Ordinal Response Regression Models. Applied Statistics, 45: 175-190.
Pulkstenis, E. and Robinson, T. J. 2004. Goodness-of-fit Test for Ordinal Response Regression Models. Statistics in Medicine, 23: 999-1014.
Fagerland, M. W. and Hosmer, D. W. 2013. A Goodness-of-fit Test for the Proportional Odds Regression Model. Statistics in Medicine 32(13): 2235-2249.

Examples

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library(MASS)
data(france)
polr.mod <- polr(vote ~ age + male + retnat + lrself, data=france)
ordfit(polr.mod)

Example output

Loading required package: car
Loading required package: effects
Loading required package: carData

Attaching package: 'carData'

The following objects are masked from 'package:car':

    Guyer, UN, Vocab

lattice theme set by effectsTheme()
See ?effectsTheme for details.
                      Estimate
Count R2              0.518   
Count R2 (Adj)        0.197   
ML R2                 0.456   
McFadden R2           0.206   
McFadden R2 (Adj)     0.195   
McKelvey & Zavoina R2 0.475   

DAMisc documentation built on May 30, 2017, 8:12 a.m.