# car v1.0-4

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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 | |

leverage.plots | Regression Leverage Plots | |

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

reg.line | Plot Regression Line | |

linear.hypothesis | Test Linear Hypothesis | |

outlier.test | Bonferroni Outlier Test | |

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

Ask | Change Argument to a Function Interactively | |

Contrasts | Functions to Construct Contrasts | |

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

qq.plot | Quantile-Comparison Plots | |

vif | Variance Inflation Factors | |

Transformation Axes | Axes for Transformed Variables | |

recode | Recode a Variable | |

hccm | Heteroscedasticity-Corrected Covariance Matrices | |

box.tidwell | Box-Tidwell Transformations | |

scatterplot | Scatterplots with Boxplots | |

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

scatterplot.matrix | Scatterplot Matrices | |

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

Var | Variance-Covariance Matrices (deprecated) | |

which.names | Position of Row Names | |

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

car-internal | Internal car functions | |

ceres.plots | Ceres Plots | |

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

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

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

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

panel.car | Panel Function Coplots | |

av.plots | Added-Variable Plots | |

n.bins | Number of Bins for Histogram | |

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

logit | Logit Transformation | |

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

Vocab | Vocabulary and Education | |

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

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

Can.pop | Canadian Population Data | |

Angell | Moral Integration of American Cities | |

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

Friendly | Format Effects on Recall | |

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

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

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

Davis | Self-Reports of Height and Weight | |

Greene | Refugee Appeals | |

Leinhardt | Data on Infant-Mortality | |

SLID | Survey of Labour and Income Dynamics | |

Robey | Fertility and Contraception | |

Adler | Experimenter Expectations | |

Ornstein | Interlocking Directorates Among Major Canadian Firms | |

Ginzberg | Data on Depression | |

Sahlins | Agricultural Production in Mazulu Village | |

Hartnagel | Canadian Crime-Rates Time Series | |

Migration | Canadian Interprovincial Migration Data | |

US.pop | Population of the United States | |

Quartet | Four Regression Datasets | |

Moore | Status, Authoritarianism, and Conformity | |

Florida | Florida County Voting | |

Duncan | Duncan's Occupational Prestige Data | |

Prestige | Prestige of Canadian Occupations | |

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

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

Baumann | Methods of Teaching Reading Comprehension | |

Chirot | The 1907 Romanian Peasant Rebellion | |

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

Chile | Voting Intentions in the 1988 Chilean Plebiscite | |

Mandel | Contrived Collinear Data | |

Guyer | Anonymity and Cooperation | |

UN | GDP and Infant Mortality | |

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

No Results! |

## Last month downloads

## Details

Date | 2003/4/25 |

License | GPL version 2 or newer |

URL | http://www.r-project.org, http:/www.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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