# car v1.0-8

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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 | |

av.plots | Added-Variable Plots | |

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

recode | Recode a Variable | |

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

Ask | Change Argument to a Function Interactively | |

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

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

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

ceres.plots | Ceres Plots | |

Contrasts | Functions to Construct Contrasts | |

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

panel.car | Panel Function Coplots | |

scatterplot | Scatterplots with Boxplots | |

reg.line | Plot Regression Line | |

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

logit | Logit Transformation | |

leverage.plots | Regression Leverage Plots | |

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

scatterplot.matrix | Scatterplot Matrices | |

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

qq.plot | Quantile-Comparison Plots | |

Var | Variance-Covariance Matrices (deprecated) | |

Transformation Axes | Axes for Transformed Variables | |

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

box.tidwell | Box-Tidwell Transformations | |

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

vif | Variance Inflation Factors | |

linear.hypothesis | Test Linear Hypothesis | |

hccm | Heteroscedasticity-Corrected Covariance Matrices | |

outlier.test | Bonferroni Outlier Test | |

n.bins | Number of Bins for Histogram | |

car-internal | Internal car functions | |

which.names | Position of Row Names | |

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

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

Chirot | The 1907 Romanian Peasant Rebellion | |

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

US.pop | Population of the United States | |

Florida | Florida County Voting | |

Angell | Moral Integration of American Cities | |

Greene | Refugee Appeals | |

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

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

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

Robey | Fertility and Contraception | |

Chile | Voting Intentions in the 1988 Chilean Plebiscite | |

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

UN | GDP and Infant Mortality | |

Ginzberg | Data on Depression | |

Sahlins | Agricultural Production in Mazulu Village | |

Prestige | Prestige of Canadian Occupations | |

Can.pop | Canadian Population Data | |

Quartet | Four Regression Datasets | |

Hartnagel | Canadian Crime-Rates Time Series | |

Ornstein | Interlocking Directorates Among Major Canadian Firms | |

Duncan | Duncan's Occupational Prestige Data | |

Leinhardt | Data on Infant-Mortality | |

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

Baumann | Methods of Teaching Reading Comprehension | |

Friendly | Format Effects on Recall | |

Vocab | Vocabulary and Education | |

Davis | Self-Reports of Height and Weight | |

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

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

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

Guyer | Anonymity and Cooperation | |

Migration | Canadian Interprovincial Migration Data | |

Mandel | Contrived Collinear Data | |

SLID | Survey of Labour and Income Dynamics | |

Adler | Experimenter Expectations | |

Moore | Status, Authoritarianism, and Conformity | |

No Results! |

## Last month downloads

## Details

Date | 2003/10/9 |

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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