# car v1.0-13

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## 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. Some of the functions in car will use functions
in the MASS package, if it is present; the subsets function graphs
objects produced by the regsubsets function in the leaps package. Where relevant, the functions in
car are consistent with na.action = na.omit or na.exclude.

## Functions in car

Name | Description | |

spread.level.plot | Spread-Level Plots | |

n.bins | Number of Bins for Histogram | |

Contrasts | Functions to Construct Contrasts | |

reg.line | Plot Regression Line | |

cr.plots | Component+Residual (Partial Residual) Plots | |

ncv.test | Score Test for Non-Constant Error Variance | |

av.plots | Added-Variable Plots | |

influence.plot | Regression Influence Plot | |

which.names | Position of Row Names | |

qq.plot | Quantile-Comparison Plots | |

car-internal | Internal car functions | |

levene.test | Levene's Test | |

linear.hypothesis | Test Linear Hypothesis | |

Transformation Axes | Axes for Transformed Variables | |

box.cox.powers | Multivariate Unconditional Box-Cox Transformations | |

Anova | Anova Tables for Linear and Generalized Linear Models | |

vif | Variance Inflation Factors | |

scatterplot.matrix | Scatterplot Matrices | |

durbin.watson | Durbin-Watson Test for Autocorrelated Errors | |

box.tidwell | Box-Tidwell Transformations | |

box.cox.var | Constructed Variable for Box-Cox Transformation | |

Ellipses | Ellipses, Data Ellipses, and Confidence Ellipses | |

logit | Logit Transformation | |

ceres.plots | Ceres Plots | |

recode | Recode a Variable | |

panel.car | Panel Function Coplots | |

subsets | Plot Output from regsubsets Function in leaps package | |

scatterplot | Scatterplots with Boxplots | |

box.cox | Box-Cox Family of Transformations | |

leverage.plots | Regression Leverage Plots | |

Cook's Distances | Cook's Distances for Linear and Generalized Linear Models | |

Ask | Change Argument to a Function Interactively | |

hccm | Heteroscedasticity-Corrected Covariance Matrices | |

outlier.test | Bonferroni Outlier Test | |

Var | Variance-Covariance Matrices (deprecated) | |

Angell | Moral Integration of American Cities | |

Chirot | The 1907 Romanian Peasant Rebellion | |

Robey | Fertility and Contraception | |

Chile | Voting Intentions in the 1988 Chilean Plebiscite | |

Blackmoor | Exercise Histories of Eating-Disordered and Control Subjects | |

Guyer | Anonymity and Cooperation | |

Moore | Status, Authoritarianism, and Conformity | |

Mandel | Contrived Collinear Data | |

Duncan | Duncan's Occupational Prestige Data | |

Can.pop | Canadian Population Data | |

Quartet | Four Regression Datasets | |

Adler | Experimenter Expectations | |

Friendly | Format Effects on Recall | |

Baumann | Methods of Teaching Reading Comprehension | |

Greene | Refugee Appeals | |

Migration | Canadian Interprovincial Migration Data | |

Leinhardt | Data on Infant-Mortality | |

Ornstein | Interlocking Directorates Among Major Canadian Firms | |

Ginzberg | Data on Depression | |

Mroz | U.S. Women's Labor-Force Participation | |

Sahlins | Agricultural Production in Mazulu Village | |

Cowles | Cowles and Davis's Data on Volunteering | |

Davis | Self-Reports of Height and Weight | |

SLID | Survey of Labour and Income Dynamics | |

Freedman | Crowding and Crime in U. S. Metropolitan Areas | |

Prestige | Prestige of Canadian Occupations | |

Vocab | Vocabulary and Education | |

UN | GDP and Infant Mortality | |

Florida | Florida County Voting | |

Hartnagel | Canadian Crime-Rates Time Series | |

States | Education and Related Statistics for the U.S. States | |

Womenlf | Canadian Women's Labour-Force Participation | |

Ericksen | The 1980 U.S. Census Undercount | |

Anscombe | U. S. State Public-School Expenditures | |

Burt | Fraudulent Data on IQs of Twins Raised Apart | |

US.pop | Population of the United States | |

Bfox | Canadian Women's Labour-Force Participation | |

DavisThin | Davis's Data on Drive for Thinness | |

No Results! |

## Last month downloads

## Details

Date | 2004/7/13 |

License | GPL version 2 or newer |

URL | http://www.r-project.org, http://socserv.socsci.mcmaster.ca/jfox/ |

Packaged | Tue Jul 13 10:14:38 2004; John Fox |

depends | base (>= 1.9.0) , R (>= 1.9.0) |

Contributors | John Fox, David Firth, Brian Ripley, Michael Friendly, Georges Monette, Sanford for various suggestions |

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