Statistical Software Components

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WHICHPKG: Stata module to display information on components of a Stata package

Mark Schaffer

WHITETST: Stata module to perform White's test for heteroskedasticity

Christopher Baum and Nicholas Cox

WHITTLE: Stata module to compute long-memory parameter via Whittle method

Christopher Baum, Stan Hurn and Kenneth Lindsay

WHOTDECK: Stata module to perform multiple imputation using the Approximate Bayesian Bootstrap with weights

Adrian Mander

WID: Stata module to download data from the World Inequality Database (WID.world)

Thomas Blanchet

WILLIAMS: Stata module to estimate logistic regression via Williams procedure

Joseph Hilbe

WINDOWSMONITOR: Stata module to send a winexec command to a Windows operating system and display the output in the Stata results window in (almost) real time

Robert Grant

WINPROB: Stata module to compute the win probability for a single outcome

Leonardo Guizzetti

WINRATIOTEST: Stata module to calculate the unmatched Win Ratio for prioritised outcomes

John Gregson and Tim Collier

WINSOR2: Stata module to winsorize data

Yujun Lian

WINSOR4: Stata module to winsorize a variable based on outliers defined by either percentiles or interquartile range

Adrien Matray and Pablo E. Rodriguez

WINSOR: Stata module to Winsorize a variable

Nicholas Cox

WITCH: Stata module to mystically manage files on adopath

Thomas Steichen

WNTSTMVQ: Stata module to compute multivariate Ljung-Box Q test

Richard Sperling and Christopher Baum

WOOLDID: Stata module to estimate Difference-in-Differences Treatment Effects with Staggered Treatment Onset Using Heterogeneity-Robust Two-Way Fixed Effects Regressions

Thomas A. Hegland

WORDCB: Stata module to create a codebook in MS Word format

Troy Payne

WORDCLOUD: Stata module for drawing word cloud figure based on echarts developed by Baidu

Shutter Zor

WORDCONVERT: Stata module to transfer files among several types in Windows

Chuntao Li and Yuan Xue

WORDY: Stata module to play a silly word game and show your guesses on a Stata graph

Austin Nichols

WORKDAYS: Stata module to compute elapsed workdays

Bill Rising

WORLDSTAT: Stata module to produce a visualisation of the state of world development

Damian Clarke

WOSADDRESS: Stata module to convert datasets from Web of Science data from wide to long

Adam Ozimek and Lutz Bornmann

WOSLOAD: Stata module to load datasets from Web of Science data

Adam Ozimek and Lutz Bornmann

WRIDIT: Stata module to generate weighted ridits

Roger Newson

WRITEINPUT: Stata module to write dataset in memory to new do-file as an input command

Eric Booth

WRITEKML: Stata module to write Keyhole Markup Language file

Gabi Huiber

WRITEPSFRAG: Stata module to translate Stata text to EPS

Ryan Kessler

WSCV: Stata module to compute the within-subject coefficient of variation

Ariel Linden

WTD: Stata module to produce analysis of waiting time distribution

Henrik Stovring

WTD_PERC: Stata module to calculate percentile of inter-arrival density based on the parametric Waiting Time Distribution (WTD)

Henrik Stovring

WTDTTT: Stata module to estimate parameters of the ordinary and reverse Waiting Time Distribution (WTD) by maximum likelihood

Katrine Bødkergaard Nielsen and Henrik Stovring

WTP: Stata module to estimate confidence intervals for willingness to pay measures

Arne Hole

WTPCIKR: Stata module to estimate Krinsky and Robb Confidence Intervals for Mean and Median Willingness to Pay

P. Wilner Jeanty

WWWHELP: Stata module to display the help document in PDF format of the specified command via browsers

Yujun Lian

WYOUNG: Stata module to perform multiple testing corrections

Julian Reif

XAUTO: Stata module to input an extended version of the auto data

Roger Newson

XB2PI: Stata module to transform the logit scores into probabilities

Nicola Orsini

XBALANCE: Stata module to compute standardized differences for stratified comparisons via R

Jake Bowers, Mark Fredrickson and Ben Hansen

XBRCSPLINE: Stata module to tabulate differences in predicted responses after restricted cubic spline models

Nicola Orsini

XCOLLAPSE: Stata module to make data set of summary statistics on disk or in memory

Roger Newson

XCONTRACT: Stata module to make a data set of frequencies and percents on disk or in memory

Roger Newson

XCORPLOT: Stata module to calculate and graph cross-correlation function

Nicholas Cox and Aurelio Tobias

XDATELIST: Stata module to create ascending numeric lists of dates

Roger Newson

XDIR: Stata module to create a resultsset with one observation per file in a directory

Roger Newson

XFRAC: Stata module to produce tabulation using categories defined by fractions of a cut-off value

Stephen Jenkins

XFRAMEAPPEND: Stata module to append data frames to the end of the current data frame

Roger Newson

XGLM: Stata module to extend glm

Roger Newson

XGROUP: Stata module to create a grouping variable with key values in an output dataset

Roger Newson

XLINCOM: Stata module to estimate multiple linear combinations of parameters

Wouter Wakker

XLINK: Stata module to provide extra link functions for use with glm

Roger Newson