# HH v2.1-25

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## Statistical Analysis and Data Display: Heiberger and Holland

Support software for Statistical Analysis and Data Display (Springer, ISBN 0-387-40270-5). This contemporary presentation of statistical methods features extensive use of graphical displays for exploring data and for displaying the analysis. The authors demonstrate how to analyze data---showing code, graphics, and accompanying computer listings---for all the methods they cover. They emphasize how to construct and interpret graphs, discuss principles of graphical design, and show how accompanying traditional tabular results are used to confirm the visual impressions derived directly from the graphs. Many of the graphical formats are novel and appear here for the first time in print. All chapters have exercises.

## Functions in HH

 Name Description cp.calc Rearranges and improves the legibility of the output from the stepwise function in S-Plus. partial.corr partial correlations as.multicomp Support functions in R for MMC (mean--mean multiple comparisons) plots. interaction2wt Plot all main effects and twoway interactions in a multifactor design diag.maybe.null Returns a value for the diagonal of NA and NULL arguments. export.eps Exports a graph to an EPS file. mcalinfct MCA multiple comparisons analysis (pairwise) summary.arma.loop summary and print and subscript methods for tsdiagplot and related objects. norm.curve plot a normal or a t-curve with both x and z axes. lmatRows Find the row numbers in the lmat corresponding to the focus factor. lm.regsubsets Evaluate lm model with highest adjusted $R^2$. panel.cartesian trellis panel function, with labeled rows and columns and without strip labels. seqplot.forecast seqplot with confidence bands for the forecast region. panel.dotplot.tb Dotplot with evenly spaced tiebreakers. seqplot Time series plot. aov.sufficient Analysis of variance from sufficient statistics for groups. regr1.plot plot x and y, with optional straight line fit and display of squared residuals hh Resolve filenames relative to the HH directory. strip.xysplom strip function that is able to place the correlation or regression coefficient into the strip label. mmc MMC (mean--mean multiple comparisons) plots. ancova Compute and plot oneway analysis of covariance panel.acf Panel functions for tsdiagplot. xysplom scatterplot matrix with potentially different sets of variables on the rows and columns. hov Homogeneity of Variance npar.arma Count the number of parameters in an ARIMA model specification. lm.case case statistics for regression analysis objip loop through all attached directories looking for pattern intxplot Interaction plot, with an option to print standard error bars. print.tsdiagplot Print a "tsdiagplot" object. odds.ratio Calculate or plot the odds ratio for a 2x2 table of counts. ladder Draw a "ladder of powers" plot, plotting each of several powers of y against the same powers of x. residual.plots Residual plots for a linear model. panel.pairs.hh Function based on S-Plus panel.pairs to add the subpanel.scales and panel.cex arguments. extra Miscellaneous functions that I wish were in or consistent between S-Plus and R. regr2.plot 3D plot of z against x and y, with regression plane fit and display of squared residuals. if.R Conditional Execution for R or S-Plus strip.background0 Turn off the coloring in the trellis strip labels. Color 0 is the background color. X.residuals Residuals from the regression of each column of a data.frame against all the other columns. arima.diag.hh Repair design error in S-Plus arima.diag tsdiagplot Times series diagnostic plots for a structured set of ARIMA models. ancova-class Class "ancova" Analysis of Covariance ae.dotplot AE (Adverse Events) dotplot of incidence and relative risk col.hh Initializing Trellis Displays multicomp.reverse Force all comparisons in a "multicomp" object to have the same sign. position Find or assign the implied position for graphing the levels of a factor. A new class "positioned", which inherits from "ordered" and "factor", is defined. dchisq.intermediate Intermediate f and chisq functions to simplify writing for both R and S-Plus. interaction.positioned interaction method for positioned factors. plot.hov Homogeneity of Variance Plot HH-package Support software for Statistical Analysis and Data Display by Richard M. Heiberger and Burt Holland mmc.mean MMC (mean--mean multiple comparisons) plots from the sufficient statistics for a one-way design. sufficient Calculates the mean, standard deviation, and number of observations in each group of a data.frame that has one continuous variable and two factors. multicomp.order Update a multicomp object by ordering its contrasts. t.trellis Interchange the x- and y-axes for an S-Plus trellis object. Interchange the conditioning variables for an R trellis object. orthog.complete Construct an orthogonal matrix which is an arbitrary completion of the column space of the input set of columns. plot.multicomp Multiple comparisons plot that gives independent user control over the appearance of the significant and not significant comparisons. panel.bwplot.intermediate.hh Panel functions for bwplot. vif Calculate the Variance Inflation Factor ci.plot Plot confidence and prediction intervals for simple linear regression tsacfplots Coordinated time series and ACF and PCF plots. glht.mcp.993 Retain averaging behavior that was previously available in glht. anova.mean ANOVA table from the group sample sizes, means, and standard deviations. logit Logistic function and its inverse. axis.i2wt specialized axis function for interaction2wt. do.formula.trellis.xysplom Interprets model formulas for xysplom and extended bwplots persp.plane Helper functions for regr2.plot legendGrob2wt place separate keys to the left of each row of a trellis plot.mmc.multicomp MMC (Mean--mean Multiple Comparisons) plot. panel.xysplom panel method for xysplom. gof.calculation Calculate Box--Ljung Goodness of Fit for ARIMA models in S-Plus. resid.squares plot squared residuals in inches to match the y-dimension positioned-class Class "positioned", extends "ordered" to specify the position for graphing the levels of a factor. panel.interaction2wt Plot all main effects and twoway interactions in a multifactor design HH_regsubsets Display tabular results for Best Subsets Regression. grid.yaxis.hh make x- and y-axis labels push.vp.hh push and pop a grid viewport, turn clipping off, change scale. F.curve plot a chisquare or a F-curve. GSremove Remove selected GraphSheetPages in the S-Plus Windows GUI Graphsheet arma.loop Loop through a series of ARIMA models and display coordinated tables and diagnoastic graphs. panel.bwplott Extension to S-Plus trellis to allow transposed plots. panel.ci.plot Default Panel Function for ci.plot No Results!