Anova Anova Tables for Various Statistical Models Boot Bootstrapping for regression models Boxplot Boxplots With Point Identification Contrasts Functions to Construct Contrasts Export Export a data frame to disk in one of many formats Import Import data from many file formats Predict Model Predictions S Modified Functions for Summarizing Linear, Generalized Linear, and Some Other Models ScatterplotSmoothers Smoothers to Draw Lines on Scatterplots Tapply Apply a Function to a Variable Within Factor Levels avPlots Added-Variable Plots basicPowerAxis Axes for Transformed Variables bcPower Box-Cox, Box-Cox with Negatives Allowed, Yeo-Johnson and Basic Power Transformations boxCox Graph the profile log-likelihood for Box-Cox transformations in 1D, or in 2D with the bcnPower family. boxCoxVariable Constructed Variable for Box-Cox Transformation boxTidwell Box-Tidwell Transformations brief Print Abbreviated Ouput car-defunct Defunct Functions in the car Package car-deprecated Deprecated Functions in the car Package car-internal.Rd Internal Objects for the 'car' package carHexsticker View the Official Hex Sticker for the car Package carPalette Set or Retrieve 'car' Package Color Palette carWeb Access to the R Companion to Applied Regression Website ceresPlots Ceres Plots compareCoefs Print estimated coefficients and their standard errors in a table for several regression models. crPlots Component+Residual (Partial Residual) Plots deltaMethod Estimate and Standard Error of a Nonlinear Function of Estimated Regression Coefficients densityPlot Nonparametric Density Estimates dfbetaPlots dfbeta and dfbetas Index Plots durbinWatsonTest Durbin-Watson Test for Autocorrelated Errors ellipse Ellipses, Data Ellipses, and Confidence Ellipses hccm Heteroscedasticity-Corrected Covariance Matrices hist.boot Methods Functions to Support 'boot' Objects infIndexPlot Influence Index Plot influence.mixed.models Influence Diagnostics for Mixed-Effects Models influencePlot Regression Influence Plot invResPlot Inverse Response Plots to Transform the Response invTranPlot Choose a Predictor Transformation Visually or Numerically leveneTest Levene's Test leveragePlots Regression Leverage Plots linearHypothesis Test Linear Hypothesis logit Logit Transformation mcPlots Draw Linear Model Marginal and Conditional Plots in Parallel or Overlaid mmps Marginal Model Plotting ncvTest Score Test for Non-Constant Error Variance outlierTest Bonferroni Outlier Test panel.car Panel Function for Coplots poTest Test for Proportional Odds in the Proportional-Odds Logistic-Regression Model pointLabel Label placement for points to avoid overlaps powerTransform Finding Univariate or Multivariate Power Transformations qqPlot Quantile-Comparison Plot recode Recode a Variable regLine Plot Regression Line residualPlots Residual Plots for Linear and Generalized Linear Models scatter3d Three-Dimensional Scatterplots and Point Identification scatterplot Enhanced Scatterplots with Marginal Boxplots, Point Marking, Smoothers, and More scatterplotMatrix Scatterplot Matrices showLabels Functions to Identify and Mark Extreme Points in a 2D Plot. sigmaHat Return the scale estimate for a regression model some Sample a Few Elements of an Object spreadLevelPlot Spread-Level Plots strings2factors Convert Character-String Variables in a Data Frame to Factors subsets Plot Output from regsubsets Function in leaps package symbox Boxplots for transformations to symmetry testTransform Likelihood-Ratio Tests for Univariate or Multivariate Power Transformations to Normality vif Variance Inflation Factors wcrossprod Weighted Matrix Crossproduct whichNames Position of Row Names