# car v1.0-3

Monthly downloads

## 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 | |

effect | Functions For Constructing Effect Plots | |

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

linear.hypothesis | Test Linear Hypothesis | |

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

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

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

reg.line | Plot Regression Line | |

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

Transformation Axes | Axes for Transformed Variables | |

car-internal | Internal car functions | |

n.bins | Number of Bins for Histogram | |

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

ceres.plots | Ceres Plots | |

hccm | Heteroscedasticity-Corrected Covariance Matrices | |

recode | Recode a Variable | |

Arrests | Arrests for Marijuana Possession | |

scatterplot | Scatterplots with Boxplots | |

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

which.names | Position of Row Names | |

outlier.test | Bonferroni Outlier Test | |

leverage.plots | Regression Leverage Plots | |

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

Var | Variance-Covariance Matrices (deprecated) | |

qq.plot | Quantile-Comparison Plots | |

logit | Logit Transformation | |

Contrasts | Functions to Construct Contrasts | |

panel.car | Panel Function Coplots | |

Ask | Change Argument to a Function Interactively | |

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

vif | Variance Inflation Factors | |

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

av.plots | Added-Variable Plots | |

box.tidwell | Box-Tidwell Transformations | |

scatterplot.matrix | Scatterplot Matrices | |

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

Davis | Self-Reports of Height and Weight | |

Can.pop | Canadian Population Data | |

Guyer | Anonymity and Cooperation | |

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

Prestige | Prestige of Canadian Occupations | |

Baumann | Methods of Teaching Reading Comprehension | |

Chirot | The 1907 Romanian Peasant Rebellion | |

Duncan | Duncan's Occupational Prestige Data | |

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

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

Friendly | Format Effects on Recall | |

SLID | Survey of Labour and Income Dynamics | |

Quartet | Four Regression Datasets | |

UN | GDP and Infant Mortality | |

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

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

Vocab | Vocabulary and Education | |

Hartnagel | Canadian Crime-Rates Time Series | |

Florida | Florida County Voting | |

Leinhardt | Data on Infant-Mortality | |

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

Angell | Moral Integration of American Cities | |

Greene | Refugee Appeals | |

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

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

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

Mandel | Contrived Collinear Data | |

Chile | Voting Intentions in the 1988 Chilean Plebiscite | |

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

Moore | Status, Authoritarianism, and Conformity | |

Ornstein | Interlocking Directorates Among Major Canadian Firms | |

Ginzberg | Data on Depression | |

Robey | Fertility and Contraception | |

US.pop | Population of the United States | |

Migration | Canadian Interprovincial Migration Data | |

Adler | Experimenter Expectations | |

Sahlins | Agricultural Production in Mazulu Village | |

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

No Results! |

## Last month downloads

## Details

Date | 2003/3/29 |

License | GPL version 2 or newer |

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

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

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

#### Include our badge in your README

```
[![Rdoc](http://www.rdocumentation.org/badges/version/car)](http://www.rdocumentation.org/packages/car)
```