# StataCorp LP

# Stata Technical Bulletin

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Web page: http://stata-press.com/journals/stbj.html

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### 1999, Volume 8, Issue 48

### 1999, Volume 8, Issue 47

**Within subjects (repeated measures) ANOVA, including between subjects factors***by*John R. Gleason**Zero-truncated Poisson and negative binomial regression***by*Joseph Hilbe**Pairwise comparisons of means, including the Tukey wsd method***by*John R. Gleason**Two-stage linear constrained estimation***by*Jeroen Weesie**Multiple regression with missing observations for some variables***by*Mead Over**Assessing the influence of a single study in the meta-anyalysis estimate***by*Aurelio Tobias**Two methods for assessing the goodness-of-fit of age-specific reference intervals***by*Eileen Wright & Patrick Royston**Drawing Venn diagrams***by*Jens M. Lauritsen

### 1999, Volume 8, Issue 46

**Time series regression for counts allowing for autocorrelation***by*Aurelio Tobias & Michael J. Campbell**Poisson regression with a random effect***by*David Clayton**Formatting regression output for published tables***by*John Luke Gallup**Zero-inflated Poisson and negative binomial regression models***by*Jesper B. Sorensen**Geographically weighted regression: A method for exploring spatial nonstationarity***by*Mark S. Pearce**Right, left, and uncensored Poisson regression***by*Joseph Hilbe & Dean H. Judson**Correction to the adjust command***by*Kenneth Higbee**Violin plots***by*Thomas J. Steichen**Confidence ellipses***by*Anders Alexandersson**Correction to labgraph***by*Jon Faust**Quantiles of the studentized range distribution***by*John R. Gleason**Dialog box window for browsing, editing, and entering observations***by*Tony Brady

### 1999, Volume 8, Issue 45

**Two-way contingency tables for survey or clustered data***by*William M. Sribney**Switching regressions***by*Frederic Zimmerman**Logistic regression for data including multiple imputations***by*Christopher Paul**Robust variance estimators for MLE Poisson and negative binomial regression***by*Joseph Hilbe**Akaike's information criterion and Schwarz's criterion***by*Aurelio Tobias & Michael J. Campbell**Correction to the adjust command***by*Kenneth Higbee**Concordance correlation coefficient, revisited***by*Thomas J. Steichen & Nicholas J. Cox**Correction to funnel plot***by*Michael J. Bradburn & Jonathan J. Deeks & Douglas G. Altman**Update of sampsi***by*Paul T. Seed**Results for all possible combinations of arguments***by*Nicholas J. Cox**Bivariate results for each pair of variables in a list***by*Nicholas J. Cox**Programming utility: numeric lists (correction and extension)***by*Jeroen Weesie**Graphical representation of follow-up by time bands***by*Adrian Mander**A set of 3D-programs***by*Guy D. van Melle**labgraph: placing text labels on two-way graphs***by*Jon Faust**Joining episodes in multi-record survival time data***by*Jeroen Weesie**A tool for exploring Stata datasets (Windows and Macintosh only)***by*John R. Gleason**Digamma and trigamma functions***by*Joseph Hilbe

### 1999, Volume 8, Issue 44

**Predicted survival curves for the Cox proportional hazards model***by*Joanne Garrett**Adjusted predictions and probabilities after estimation***by*Kenneth Higbee**Estimating generalized ordered logit models***by*Vincent Kang Fu**Windmeijer's goodness-of-fit test for logistic regression***by*Jeroen Weesie**Continuation-ratio models for ordinal response data***by*Rory Wolfe**Moving summaries***by*Nicholas J. Cox**metan-an alternative meta-analysis command***by*Michael J. Bradburn & Jonathan J. Deeks & Dennis G. Altman**Tests for publication bias in meta-analysis***by*Thomas J. Steichen & Matthias Egger & Jonathan Sterne**Collasping datasets to frequencies***by*Nicholas J. Cox

### 1999, Volume 8, Issue 43

**Concordance correlation coefficient***by*Thomas J. Steichen & Nicholas J. Cox**Parameter estimation for the Gumbel distribution***by*Manuel G. Scotto & Aurelio Tobias**Fractional polynomials for st data***by*Patrick Royston**Multivariable fractional polynomials***by*Patrick Royston & Gareth Ambler**Enhancements for calculation of adjusted means and adjusted proportions***by*Joanne Garrett**Corrections to the meta-analysis command***by*Stephen Sharp & Jonathan Sterne**Parameterized Monte Carlo simulations: An enhancement to the simulation command***by*Jeroen Weesie**A package for the analysis of husband-wife data***by*Jeroen Weesie**A notes editor for Windows and Macintosh***by*John R. Gleason**A labels editor for Windows and Macintosh***by*John R. Gleason**Generating sequences and patterns of numeric data: an extension to egen***by*R. Mark Esman**STB-37 through STB-42 available in bound format***by*Patricia Branton

### 1998, Volume 7, Issue 42

**A two-sample multivariate nonparametric test***by*Andrew M. Perkins**Indirect standardization***by*Mario Cleves**Generalized additive models***by*Patrick Royston & Gareth Ambler**Simple and multiple correspondence analysis in Stata***by*Philippe Van Kerm**Regression analysis with multiplicative heteroscedasticity***by*Jeroen Weesie**An approximate likelihood-ratio test for ordinal response models***by*Rory Wolfe & William Gould**Displaying predicted probabilities from probit or logit regression***by*Mead Over**Meta-analysis regression***by*Stephen Sharp**Cumulative meta-analysis***by*Jonathan Sterne**Adjusted population attributable fractions from logistic regression***by*Anthony R. Brady**New syntax and output for the meta-analysis command***by*Stephen Sharp & Jonathan Sterne**A graphical procedure to test equality of variances***by*Aurelio Tobias**Capturing comments from data dictionaries***by*John R. Gleason

### 1998, Volume 7, Issue 41

**Random walk tutorial***by*Albert Verbeek & Jeroen Weesie**Random allocation of treatments in blocks***by*Philip Ryan**Survival analysis with time-varying covariates***by*Jeroen Weesie**Update to analysis of follow-up studies with Stata 5.0***by*David Clayton & Michael Hills**Geometric means and confidence intervals***by*John Carlin & Suzanna Vidmar & Carlos Ramalheira**Stata-like commands for complementary log-log regression***by*Joseph Hilbe**Correction to random number generators***by*Joseph Hilbe & Walter Linde-Zwirble**Pointwise confidence intervals for running***by*Peter Sasieni & Patrick Royston**Assessing heterogeneity in meta-analysis: the Galbraith plot***by*Aurelio Tobias**Tests for publication bias in meta-analysis***by*Thomas J. Steichen**Timing portions of a program***by*Frederic Zimmerman**Expansion and display of if expressions***by*Thomas J. Steichen**An adaptive variable span running line smoother***by*Peter Sasieni**Corrections to condraw.ado***by*J. Patrick Gray & Nicholas J. Cox**Detection and deletion of duplicate observations***by*Thomas J. Steichen & Nicholas J. Cox

### 1998, Volume 7, Issue 40

**Versions of mlogit, ologit, and oprobit for survey data***by*John L. Eltinge & William M. Sribney**Analysis of follow-up studies with Stata 5.0***by*David Clayton & Michael Hills**Symmetry and marginal homogeneity test/Transmission-Disequilibrium Test (TDT)***by*Mario Cleves**Table making programs***by*John H. Tyler**Sample size calculations for clinical trials with repeated measures data***by*Paul Seed**Correction to age-specific reference intervals ("normal ranges")***by*Eileen Wright & Patrick Royston**Parsing options with embedded parentheses***by*Jeroen Weesie**Storing commands in the keyboard buffer (Windows and Macintosh only)***by*Jeroen Weesie**Checking for sufficient memory to add variables***by*Peter Sasieni**Spike plots for histograms, rootograms, and time series plots, update***by*Nicholas J. Cox & Anthony R. Brady**Easier bar charts: corrections***by*Nicholas J. Cox**Executing a command on a subset of the data***by*Peter Sasieni**Defining and recording variable orderings***by*John R. Gleason**Defining variables and recording their definitions***by*John R. Gleason**Changes to ttset and sdtest***by*William M. Sribney**Interrater agreement***by*William Gould

### 1998, Volume 7, Issue 39

**Newey-West standard errors for probit, logit, and poisson models***by*James W. Hardin**Discrete time proportional hazards regression***by*Stephen P. Jenkins**Using expressions in Stata commands***by*Jeroen Weesie**Some new matrix commands***by*Jeroen Weesie**Updated reshape***by*William Gould**lookup now indexes on-line FAQs***by*William Gould

### 1998, Volume 7, Issue 38

**Nonparametric assessment of multimodality for univariate data***by*Isaias Hazarmabeth Salgado-Ugarte & Makoto Shimizu & Toru Taniuchi**Enhancements to discriminant analysis***by*Joseph Hilbe**Routines to maximize a function***by*Christopher Ferrall**Interquartile and simultaneous-quantile regression***by*William Gould**Meta-analysis***by*Stephen Sharp & Jonathan Sterne**Age-specific reference intervals for normally distributed data***by*Eileen Wright & Patrick Royston**An enhancement of reshape***by*Jeroen Weesie

### 1998, Volume 7, Issue 37

**Survival analysis subroutine for programmers***by*William Gould**Cox proportional hazards model with the exact calculation for ties***by*William Gould**Inference on principal components***by*Jeroen Weesie**A command for randomly resampling a dataset***by*John R. Gleason**While loops from the command line***by*John R. Gleason**Bin smoothing and summary on scatter plots***by*Nicholas J. Cox**Verifying value label mappings***by*Jeroen Weesie**Enhancement to the sample command***by*Jeroen Weesie**Changing string variables to numeric***by*Nicholas J. Cox**Sequences of integers***by*Nicholas J. Cox**Memorium for Stewart West***by*Joseph Hilbe**STB-31 through STB-36 available in bound format***by*Patricia Branton

### 1997, Volume 6, Issue 36

**Immediate Mann-Whitney and binomial effect-size display***by*Richard Goldstein**Goodness-of-fit statistics for multinomial distributions***by*Jeroen Weesie**Univariate summaries with boxplots***by*John R. Gleason**Odds ratios and confidence intervals for logistic regression models with effect modification***by*Joanne Garrett**Correction to age-specific reference intervals ("normal ranges")***by*Eileen Wright & Patrick Royston**Using dialog boxes to vary program parameters***by*H. Joseph Newton**Spike plots for histograms, rootograms, and time-series plots***by*Nicholas J. Cox & Anthony R. Brady**Easier bar charts***by*Nicholas J. Cox**Convex hull plots***by*Nicholas J. Cox

### 1997, Volume 6, Issue 35

**Enhancements to the alpha command***by*Jeroen Weesie**Computing interclass correlations and large ANOVAs***by*John R. Gleason**pwcorrs: An enhanced correlation display***by*Fred Wolfe**Logistic regression: standardized coefficients and partial correlations***by*Joseph Hilbe**Correction to age-specific reference intervals ("normal ranges")***by*Eileen Wright & Patrick Royston**A dialog box layout manager for Stata***by*Timothy J. Schmidt**Programming utility: Numeric lists***by*Jeroen Weesie**Graphical assessment of the Cox model proportional assumption***by*Joanne Garrett**Binomial smoothing plot***by*Nicholas J. Cox**Automatic recording of definitions***by*Jeroen Weesie

### 1997, Volume 6, Issue 34

**A periodogram-based test for white noise***by*H. Joseph Newton**Discriminant analysis: An enhanced command***by*Joseph Hilbe**Age-specific reference intervals (“normal ranges”)***by*Eileen Wright & Patrick Royston**Importing Stata graphs into word processors on the Macintosh: Part 2***by*Chinh Nguyen**Maximum-likelihood estimation using the ml command***by*William Gould**Flexible axis scaling***by*Patrick Royston**Low-level graphics in data coordinates***by*H. Joseph Newton & James W. Hardin**An updated utility to convert EpiInfo datasets***by*R. Mark Esman

### 1997, Volume 6, Issue 33

**Stratified test for trend across ordered groups***by*Peter Sasieni**Hildreth-Houck random coefficients model***by*James W. Hardin**Bivariate probit models***by*James W. Hardin**Enhancements for the display of estimation results***by*Jeroen Weesie**Index of ordinal variation and Neyman-Barton GOF***by*Richard Goldstein**Mountain plots***by*Richard Goldstein**An immediate command for two-way tables***by*Nicholas J. Cox**An improved command for paired t tests: Correction***by*John R. Gleason**Extensions to the regpred command***by*Mead Over**Update to pattern***by*Richard Goldstein

### 1997, Volume 6, Issue 32

**Hildreth-Lu regression***by*James W. Hardin**Test for trend across ordered groups revisited***by*Peter Sasieni & Katarzyna A. Stepniewska & Douglas G. Altman**An ado-file implementation of a simplex-based maximization algorithm***by*Tavis Barr**Extensions to the brier command***by*Richard Goldstein**Extended probit regression***by*Joseph Hilbe**Maximum-likelihood complementary log-log regression***by*Joseph Hilbe**Testing dependent correlation coefficients***by*Richard Goldstein**Inference about correlations using the Fisher z-transform***by*John R. Gleason**Patterns of missing data***by*Richard Goldstein**Importing Stata graphs into word processors on the Macintosh***by*Chinh Nguyen**Reading Epilnfo datasets into Stata***by*R. Mark Esman**Accrue statistics for a command across a by list***by*James W. Hardin**Confidence intervals in a 2 x 2 table***by*Peter Sasieni**Submission guidelines***by*H. Joseph Newton

### 1997, Volume 6, Issue 31

**Estimates of linear combinations and hypothesis tests for survey data***by*John L. Eltinge & William M. Sribney**Linear, logistic, and probit regressions for survey data***by*John L. Eltinge & William M. Sribney**Describing survey data: sampling design and missing data***by*John L. Eltinge & William M. Sribney**Estimation of means, totals, ratios, and proportions for survey data***by*John L. Eltinge & William M. Sribney**Some basic concepts for design-based analysis of complex survey data***by*John L. Eltinge & William M. Sribney**STB-25�STB-30 available in bound format***by*Patricia Branton**Statement from the new editor***by*H. Joseph Newton

### 1996, Volume 5, Issue 30

**Nonparametric regression: Kernel, WARP, ad k-NN estimators***by*Isaias Hazarmabeth Salgado-Ugarte & Makoto Shimizu & Toru Taniuchi**Graphical assessment of linear trend***by*Joanne Garrett**An improved command for paired t tests***by*John R. Gleason**An even more enhanced for command***by*Patrick Royston**Online documentation for _result() contents***by*John R. Gleason**Change of editors***by*Sean Becketti

### 1996, Volume 5, Issue 29

**Kornbrot's rank difference test***by*Richard Goldstein**Making predictions in the original metric for log-transformed models***by*Richard Goldstein**A plot and a test for the***by*Patrick Royston**Huber correction for two-stage least squares estimates***by*Mead Over & Dean Jolliffe & Andrew Foster**Parsing tokens in Stata***by*Sean Becketti & Peter Sasieni**A tool for manipulating s_#objects***by*John R. Gleason**Misleading or confusing boxplots***by*John C. Nash**Graphing high-dimensional data using parallel coordinates***by*John R. Gleason

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