# car v1.0-10

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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 | |

Ask | Change Argument to a Function Interactively | |

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

Transformation Axes | Axes for Transformed Variables | |

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

Contrasts | Functions to Construct Contrasts | |

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

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

Var | Variance-Covariance Matrices (deprecated) | |

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

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

vif | Variance Inflation Factors | |

hccm | Heteroscedasticity-Corrected Covariance Matrices | |

leverage.plots | Regression Leverage Plots | |

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

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

car-internal | Internal car functions | |

ceres.plots | Ceres Plots | |

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

av.plots | Added-Variable Plots | |

scatterplot.matrix | Scatterplot Matrices | |

linear.hypothesis | Test Linear Hypothesis | |

outlier.test | Bonferroni Outlier Test | |

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

n.bins | Number of Bins for Histogram | |

recode | Recode a Variable | |

scatterplot | Scatterplots with Boxplots | |

which.names | Position of Row Names | |

logit | Logit Transformation | |

qq.plot | Quantile-Comparison Plots | |

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

box.tidwell | Box-Tidwell Transformations | |

reg.line | Plot Regression Line | |

panel.car | Panel Function Coplots | |

Hartnagel | Canadian Crime-Rates Time Series | |

Adler | Experimenter Expectations | |

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

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

Migration | Canadian Interprovincial Migration Data | |

Vocab | Vocabulary and Education | |

Davis | Self-Reports of Height and Weight | |

Florida | Florida County Voting | |

Can.pop | Canadian Population Data | |

Guyer | Anonymity and Cooperation | |

Friendly | Format Effects on Recall | |

Angell | Moral Integration of American Cities | |

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

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

Ginzberg | Data on Depression | |

Chile | Voting Intentions in the 1988 Chilean Plebiscite | |

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

Leinhardt | Data on Infant-Mortality | |

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

US.pop | Population of the United States | |

Greene | Refugee Appeals | |

Prestige | Prestige of Canadian Occupations | |

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

Baumann | Methods of Teaching Reading Comprehension | |

SLID | Survey of Labour and Income Dynamics | |

Quartet | Four Regression Datasets | |

Ornstein | Interlocking Directorates Among Major Canadian Firms | |

UN | GDP and Infant Mortality | |

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

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

Robey | Fertility and Contraception | |

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

Mandel | Contrived Collinear Data | |

Moore | Status, Authoritarianism, and Conformity | |

Duncan | Duncan's Occupational Prestige Data | |

Sahlins | Agricultural Production in Mazulu Village | |

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

Chirot | The 1907 Romanian Peasant Rebellion | |

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## Last month downloads

## Details

Date | 2004/1/6 |

License | GPL version 2 or newer |

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

depends | base (>= 1.7.0) , modreg , R (>= 1.7.0) |

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

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