car v1.2-6


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by John Fox

Companion to Applied Regression

This package accompanies J. Fox, An R and S-PLUS Companion to Applied Regression, Sage, 2002. The package contains mostly functions for applied regression, linear models, and generalized linear models, with an emphasis on regression diagnostics, particularly graphical diagnostic methods. There are also some utility functions. With some exceptions, I have tried not to duplicate capabilities in the basic distribution of R, nor in widely used packages. Where relevant, the functions in car are consistent with na.action = na.omit or na.exclude.

Functions in car

Name Description
Ornstein Interlocking Directorates Among Major Canadian Firms
Cook's Distances Cook's Distances for Linear and Generalized Linear Models
Angell Moral Integration of American Cities
Chile Voting Intentions in the 1988 Chilean Plebiscite
Mroz U.S. Women's Labor-Force Participation
Transformation Axes Axes for Transformed Variables
logit Logit Transformation
car-package Companion to Applied Regression
Ellipses Ellipses, Data Ellipses, and Confidence Ellipses
Davis Self-Reports of Height and Weight
Migration Canadian Interprovincial Migration Data
Cowles Cowles and Davis's Data on Volunteering
Soils Soil Compositions of Physical and Chemical Characteristics
Greene Refugee Appeals
ncv.test Score Test for Non-Constant Error Variance
Guyer Anonymity and Cooperation
n.bins Number of Bins for Histogram
Contrasts Functions to Construct Contrasts
ceres.plots Ceres Plots
influencPlot Regression Influence Plot
Chirot The 1907 Romanian Peasant Rebellion
reg.line Plot Regression Line
Can.pop Canadian Population Data
box.cox.var Constructed Variable for Box-Cox Transformation
OBrienKaiser O'Brien and Kaiser's Repeated-Measures Data
Moore Status, Authoritarianism, and Conformity
box.tidwell Box-Tidwell Transformations
Burt Fraudulent Data on IQs of Twins Raised Apart
Ask Change Argument to a Function Interactively
Ericksen The 1980 U.S. Census Undercount
outlier.test Bonferroni Outlier Test
recode Recode a Variable
which.names Position of Row Names
Robey Fertility and Contraception
Freedman Crowding and Crime in U. S. Metropolitan Areas
Anova Anova Tables for Various Statistical Models
qq.plot Quantile-Comparison Plots
Vocab Vocabulary and Education
Baumann Methods of Teaching Reading Comprehension
spread.level.plot Spread-Level Plots
vif Variance Inflation Factors
Anscombe U. S. State Public-School Expenditures
Prestige Prestige of Canadian Occupations
Ginzberg Data on Depression
av.plots Added-Variable Plots
box.cox Box-Cox Family of Transformations
UN GDP and Infant Mortality
Sahlins Agricultural Production in Mazulu Village
Hartnagel Canadian Crime-Rates Time Series
Florida Florida County Voting
some Sample a Few Elements of an Object
Duncan Duncan's Occupational Prestige Data
States Education and Related Statistics for the U.S. States
scatterplot Scatterplots with Boxplots
box.cox.powers Multivariate Unconditional Box-Cox Transformations
Pottery Chemical Composition of Pottery
cr.plots Component+Residual (Partial Residual) Plots
Womenlf Canadian Women's Labour-Force Participation
DavisThin Davis's Data on Drive for Thinness
leverage.plots Regression Leverage Plots
car-internal Internal car functions Panel Function Coplots
hccm Heteroscedasticity-Corrected Covariance Matrices
Adler Experimenter Expectations
Blackmoor Exercise Histories of Eating-Disordered and Control Subjects
Friendly Format Effects on Recall
Quartet Four Regression Datasets
US.pop Population of the United States
durbin.watson Durbin-Watson Test for Autocorrelated Errors
Bfox Canadian Women's Labour-Force Participation
Mandel Contrived Collinear Data
Leinhardt Data on Infant-Mortality
SLID Survey of Labour and Income Dynamics
Var Variance-Covariance Matrices (deprecated)
linear.hypothesis Test Linear Hypothesis
scatterplot.matrix Scatterplot Matrices
symbox Boxplots for transformations to symmetry
levene.test Levene's Test
subsets Plot Output from regsubsets Function in leaps package
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