# car v0.9-1

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## Companion to Applied Regression

This package contains mostly functions for applied regession, 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 plot.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 | |

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

Var | Variance-Covariance Matrices | |

car-internal | Internal car functions | |

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

Ask | Change Argument to a Function Interactively | |

av.plots | Added-Variable Plots | |

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

box.tidwell | Box-Tidwell Transformations | |

leverage.plots | Regression Leverage Plots | |

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

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

ceres.plots | Ceres Plots | |

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

Transformation Axes | Axes for Transformed Variables | |

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

scatterplot.matrix | Scatterplot Matrices | |

recode | Recode a Variable | |

hccm | Heteroscedasticity-Corrected Covariance Matrices | |

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

n.bins | Number of Bins for Histogram | |

which.names | Position of Row Names | |

panel.car | Panel Function Coplots | |

scatterplot | Scatterplots with Boxplots | |

logit | Logit Transformation | |

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

qq.plot | Quantile-Comparison Plots | |

outlier.test | Bonferroni Outlier Test | |

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

vif | Variance Inflation Factors | |

linear.hypothesis | Test Linear Hypothesis | |

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

reg.line | Plot Regression Line | |

Angell | Moral Integration of American Cities | |

Vocab | Vocabulary and Education | |

Florida | Florida County Voting | |

Chirot | The 1907 Romanian Peasant Rebellion | |

US.pop | Population of the United States | |

Quartet | Four Regression Datasets | |

Davis | Self-Reports of Height and Weight | |

Prestige | Prestige of Canadian Occupations | |

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

Robey | Fertility and Contraception | |

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

Mandel | Contrived Collinear Data | |

Moore | Status, Authoritarianism, and Conformity | |

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

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

Baumann | Methods of Teaching Reading Comprehension | |

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

Guyer | Anonymity and Cooperation | |

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

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

Adler | Experimenter Expectations | |

Hartnagel | Canadian Crime-Rates Time Series | |

Leinhardt | Data on Infant-Mortality | |

Migration | Canadian Interprovincial Migration Data | |

Chile | Voting Intentions in the 1988 Chilean Plebiscite | |

SLID | Survey of Labour and Income Dynamics | |

Can.pop | Canadian Population Data | |

Sahlins | Agricultural Production in Mazulu Village | |

UN | GDP and Infant Mortality | |

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

Ornstein | Interlocking Directorates Among Major Canadian Firms | |

Ginzberg | Data on Depression | |

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

Friendly | Format Effects on Recall | |

Duncan | Duncan's Occupational Prestige Data | |

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

Greene | Refugee Appeals | |

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## Last month downloads

## Details

Date | 2001/12/23 |

License | GPL version 2 or newer |

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

depends | base (>= 1.4.0) , modreg , R (>= 1.4.0) |

Contributors | John Fox, Georges Monette, Sanford for various suggestions |

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