# car v1.1-2

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Monthly downloads

by John Fox

## 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. Where relevant, the functions in car are consistent with
na.action = na.omit or na.exclude.

## Functions in car

Name | Description | |

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

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

scatterplot | Scatterplots with Boxplots | |

Contrasts | Functions to Construct Contrasts | |

ceres.plots | Ceres Plots | |

influence.plot | Regression Influence Plot | |

logit | Logit Transformation | |

Var | Variance-Covariance Matrices (deprecated) | |

some | Sample a Few Elements of an Object | |

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

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

linear.hypothesis | Test Linear Hypothesis | |

scatterplot.matrix | Scatterplot Matrices | |

panel.car | Panel Function Coplots | |

outlier.test | Bonferroni Outlier Test | |

reg.line | Plot Regression Line | |

av.plots | Added-Variable Plots | |

Anova | Anova Tables for Various Statistical Models | |

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

levene.test | Levene's Test | |

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

car-internal | Internal car functions | |

Transformation Axes | Axes for Transformed Variables | |

hccm | Heteroscedasticity-Corrected Covariance Matrices | |

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

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

car-package | Companion to Applied Regression | |

Ask | Change Argument to a Function Interactively | |

n.bins | Number of Bins for Histogram | |

qq.plot | Quantile-Comparison Plots | |

leverage.plots | Regression Leverage Plots | |

which.names | Position of Row Names | |

recode | Recode a Variable | |

vif | Variance Inflation Factors | |

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

symbox | Boxplots for transformations to symmetry | |

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

box.tidwell | Box-Tidwell Transformations | |

Friendly | Format Effects on Recall | |

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

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

Mandel | Contrived Collinear Data | |

Ornstein | Interlocking Directorates Among Major Canadian Firms | |

Vocab | Vocabulary and Education | |

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

Can.pop | Canadian Population Data | |

Greene | Refugee Appeals | |

Sahlins | Agricultural Production in Mazulu Village | |

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

Duncan | Duncan's Occupational Prestige Data | |

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

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

Ginzberg | Data on Depression | |

US.pop | Population of the United States | |

Guyer | Anonymity and Cooperation | |

Angell | Moral Integration of American Cities | |

Davis | Self-Reports of Height and Weight | |

Leinhardt | Data on Infant-Mortality | |

Quartet | Four Regression Datasets | |

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

Prestige | Prestige of Canadian Occupations | |

Baumann | Methods of Teaching Reading Comprehension | |

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

SLID | Survey of Labour and Income Dynamics | |

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

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

Migration | Canadian Interprovincial Migration Data | |

Moore | Status, Authoritarianism, and Conformity | |

UN | GDP and Infant Mortality | |

Chirot | The 1907 Romanian Peasant Rebellion | |

Florida | Florida County Voting | |

Hartnagel | Canadian Crime-Rates Time Series | |

Adler | Experimenter Expectations | |

Robey | Fertility and Contraception | |

Chile | Voting Intentions in the 1988 Chilean Plebiscite | |

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

No Results! |

## Last month downloads

## Details

Date | 2006/9/28 |

LazyLoad | yes |

LazyData | yes |

License | GPL version 2 or newer |

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

Packaged | Thu Sep 28 10:10:39 2006; John Fox |

depends | base (>= 2.1.1) , R (>= 2.1.1) |

suggests | leaps , MASS , nnet |

Contributors | John Fox, David Firth, Brian Ripley, Michael Friendly, Richard Heiberger, Spencer Graves, Gregor Gorjanc, Georges Monette, Henric Nilsson, Achim for various suggestions, Sanford Weisberg |

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