# car v1.0-2

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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 | |

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

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

outlier.test | Bonferroni Outlier Test | |

Deletion Diagnostics | Deletion Diagnostics for Linear and Generalized Linear Models | |

linear.hypothesis | Test Linear Hypothesis | |

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

Arrests | Arrests for Marijuana Possession | |

Contrasts | Functions to Construct Contrasts | |

reg.line | Plot Regression Line | |

ceres.plots | Ceres Plots | |

qq.plot | Quantile-Comparison Plots | |

Transformation Axes | Axes for Transformed Variables | |

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

leverage.plots | Regression Leverage Plots | |

box.tidwell | Box-Tidwell Transformations | |

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

vif | Variance Inflation Factors | |

hccm | Heteroscedasticity-Corrected Covariance Matrices | |

logit | Logit Transformation | |

which.names | Position of Row Names | |

panel.car | Panel Function Coplots | |

recode | Recode a Variable | |

Ask | Change Argument to a Function Interactively | |

av.plots | Added-Variable Plots | |

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

scatterplot | Scatterplots with Boxplots | |

car-internal | Internal car functions | |

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

Var | Variance-Covariance Matrices (deprecated) | |

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

scatterplot.matrix | Scatterplot Matrices | |

n.bins | Number of Bins for Histogram | |

effect | Functions For Constructing Effect Plots | |

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

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

Chirot | The 1907 Romanian Peasant Rebellion | |

Robey | Fertility and Contraception | |

Adler | Experimenter Expectations | |

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

Ornstein | Interlocking Directorates Among Major Canadian Firms | |

Angell | Moral Integration of American Cities | |

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

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

Leinhardt | Data on Infant-Mortality | |

Baumann | Methods of Teaching Reading Comprehension | |

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

Ginzberg | Data on Depression | |

Can.pop | Canadian Population Data | |

Greene | Refugee Appeals | |

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

Quartet | Four Regression Datasets | |

Mandel | Contrived Collinear Data | |

Hartnagel | Canadian Crime-Rates Time Series | |

US.pop | Population of the United States | |

Vocab | Vocabulary and Education | |

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

Florida | Florida County Voting | |

Davis | Self-Reports of Height and Weight | |

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

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

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

Moore | Status, Authoritarianism, and Conformity | |

Duncan | Duncan's Occupational Prestige Data | |

UN | GDP and Infant Mortality | |

SLID | Survey of Labour and Income Dynamics | |

Prestige | Prestige of Canadian Occupations | |

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

Chile | Voting Intentions in the 1988 Chilean Plebiscite | |

Sahlins | Agricultural Production in Mazulu Village | |

Friendly | Format Effects on Recall | |

Guyer | Anonymity and Cooperation | |

Migration | Canadian Interprovincial Migration Data | |

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

No Results! |

## Last month downloads

## Details

Date | 2003/3/14 |

License | GPL version 2 or newer |

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

depends | base (>= 1.6.0) , grid , lattice , modreg , R (>= 1.6.0) |

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

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