Stata Technical Bulletin 29
table of contents

an57: Stata is on the Web
Author: Chinh Nguyen, StataCorp
crc43: Wald test of nonlinear hypotheses after model estimation
dm27.1: Correction to improved collapse
Author: William Gould
dm37: Extended merge capabilities
Author: Jon Faust, Board of Governors of the Federal Reserve System
dm38: A more automated merge procedure
Author: Robert M. Farmer, Alabama Quality Assurance Foundation, Inc.
dm39: Using .hlp files to document data analysis
Author: Michael Hills, London School of Health and Tropical Medicine, London
dm40 Converting string variables to numeric variables
Author: Robert M. Farmer, Alabama Quality Assurance Foundation, Inc.
gr18: Graphing high-dimensional data using parallel coordinates
Author: John R. Gleason, Syracuse University
gr19: Misleading or confusing boxplots
Author: John C. Nash, Faculty of Administration, University of Ottawa
ip11: A tool for manipulating s_#objects
Author: John R. Gleason, Syracuse University
ip12: Parsing tokens in Stata
Author: Sean Becketti, STB Editor
sg29.1: Tabulation of observed/expected rations and confidence intervals (Update)
Author: Peter Sasieni, Imperial Cancer Research Fund, London, UK
sg46: Huber correction for two-stage least squares estimates
Authors: Mead Over, The World Bank
Dean Jolliffe, The World Bank
Andrew Foster, University of Pennsylvania
sg47: A plot and a test for the x2 distribution
Author: Patrick Royston, Royal Postgraduate Medical School, London, UK
sg48: Making predictions in the original metric for log-transformed models
Author: Richard Goldstein, Qualitas, Inc.
snp9: Kornbrot’s rank difference test
Author: Richard Goldstein, Qualitas, Inc.