# car v1.2-0

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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 | |

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

leverage.plots | Regression Leverage Plots | |

reg.line | Plot Regression Line | |

Ask | Change Argument to a Function Interactively | |

Transformation Axes | Axes for Transformed Variables | |

recode | Recode a Variable | |

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

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

Var | Variance-Covariance Matrices (deprecated) | |

Pottery | Chemical Composition of Pottery | |

some | Sample a Few Elements of an Object | |

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

ceres.plots | Ceres Plots | |

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

influence.plot | Regression Influence Plot | |

n.bins | Number of Bins for Histogram | |

Soils | Soil Compositions of Physical and Chemical Characteristics | |

qq.plot | Quantile-Comparison Plots | |

symbox | Boxplots for transformations to symmetry | |

car-internal | Internal car functions | |

av.plots | Added-Variable Plots | |

vif | Variance Inflation Factors | |

linear.hypothesis | Test Linear Hypothesis | |

scatterplot | Scatterplots with Boxplots | |

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

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

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

hccm | Heteroscedasticity-Corrected Covariance Matrices | |

which.names | Position of Row Names | |

Anova | Anova Tables for Various Statistical Models | |

car-package | Companion to Applied Regression | |

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

OBrienKaiser | O'Brien and Kaiser's Repeated-Measures Data | |

scatterplot.matrix | Scatterplot Matrices | |

outlier.test | Bonferroni Outlier Test | |

levene.test | Levene's Test | |

box.tidwell | Box-Tidwell Transformations | |

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

logit | Logit Transformation | |

panel.car | Panel Function Coplots | |

Contrasts | Functions to Construct Contrasts | |

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

Ginzberg | Data on Depression | |

Friendly | Format Effects on Recall | |

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

Greene | Refugee Appeals | |

SLID | Survey of Labour and Income Dynamics | |

Baumann | Methods of Teaching Reading Comprehension | |

Leinhardt | Data on Infant-Mortality | |

Davis | Self-Reports of Height and Weight | |

Florida | Florida County Voting | |

Sahlins | Agricultural Production in Mazulu Village | |

Guyer | Anonymity and Cooperation | |

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

Mandel | Contrived Collinear Data | |

Ornstein | Interlocking Directorates Among Major Canadian Firms | |

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

Vocab | Vocabulary and Education | |

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

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

Migration | Canadian Interprovincial Migration Data | |

UN | GDP and Infant Mortality | |

Robey | Fertility and Contraception | |

Duncan | Duncan's Occupational Prestige Data | |

Chile | Voting Intentions in the 1988 Chilean Plebiscite | |

Chirot | The 1907 Romanian Peasant Rebellion | |

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

Angell | Moral Integration of American Cities | |

Moore | Status, Authoritarianism, and Conformity | |

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

Adler | Experimenter Expectations | |

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

Prestige | Prestige of Canadian Occupations | |

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

US.pop | Population of the United States | |

Hartnagel | Canadian Crime-Rates Time Series | |

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

Can.pop | Canadian Population Data | |

Quartet | Four Regression Datasets | |

No Results! |

## Last month downloads

## Details

Date | 2006/12/3 |

LazyLoad | yes |

LazyData | yes |

License | GPL version 2 or newer |

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

Packaged | Sun Dec 3 14:42:43 2006; John Fox |

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

suggests | leaps , MASS , nnet |

imports | stats |

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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