# Boston College Department of Economics

# Statistical Software Components

**Contact information of Boston College Department of Economics:**

Postal: Boston College, 140 Commonwealth Avenue, Chestnut Hill MA 02467 USA

Phone: 617-552-3670

Fax: +1-617-552-2308

Email:

Web page: http://fmwww.bc.edu/EC/

More information through EDIRC

**Order information:**

Web: http://repec.org/docs/ssc.php **Editor:**

Additional information is available for the following
registered editor(s): Christopher F Baum
**For corrections or technical questions regarding this series, please contact
(Christopher F Baum)** **Series handle:** repec:boc:bocode
**Citations RSS feed:** at CitEc
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**Access and download statistics****Top item:** By downloads (last 12 months).

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### 2012

**IE_RATE: Stata module to conduct age, period, and cohort (APC) analysis of tabular rate data using the intrinsic estimator***by*Daniel A. Powers**SCM: Stata module to process data for Social Cognitive Mapping***by*Zachary Neal**ODI: Stata module to score Oswestry Disability Index***by*Johann Blauth & Monica Daigl**SPROPER: Stata module to get proper case for foreign names in variables***by*Austin Nichols**TRAVELTIME: Stata module to generate travel time and travel distance information***by*Adam Ozimek & Daniel Miles**GEOCODE: Stata module to geocode data***by*Adam Ozimek & Daniel Miles**GROUPDIST: Stata module to generate within-group minimum and maximum distances***by*Adam Ozimek & Lutz Bornmann**WOSLOAD: Stata module to load datasets from Web of Science data***by*Adam Ozimek & Lutz Bornmann**WOSADDRESS: Stata module to convert datasets from Web of Science data from wide to long***by*Adam Ozimek & Lutz Bornmann**XTREGAM: Stata module to estimate Amemiya Random-Effects Panel Data: Ridge and Weighted Regression***by*Emad Abd Elmessih Shehata**XTREGBEM: Stata module to estimate Between-Effects Panel Data: Ridge and Weighted Regression***by*Emad Abd Elmessih Shehata**XTREGBN: Stata module to estimate Balestra-Nerlove Random-Effects Panel Data: Ridge and Weighted Regression***by*Emad Abd Elmessih Shehata**XTREGDHP: Stata module to estimate Han-Philips (2010) Linear Dynamic Panel Data Regression***by*Emad Abd Elmessih Shehata**XTREGFEM: Stata module to estimate Fixed-Effects Panel Data: Ridge and Weighted Regression***by*Emad Abd Elmessih Shehata**XTREGMLE: Stata module to estimate Trevor Breusch MLE Random-Effects Panel Data: Ridge and Weighted Regression***by*Emad Abd Elmessih Shehata**XTREGREM: Stata module to estimate Fuller-Battese GLS Random-Effects Panel Data: Ridge and Weighted Regression***by*Emad Abd Elmessih Shehata**XTREGSAM: Stata module to estimate Swamy-Arora Random-Effects Panel Data: Ridge and Weighted Regression***by*Emad Abd Elmessih Shehata**XTREGWEM: Stata module to estimate Within-Effects Panel Data: Ridge and Weighted Regression***by*Emad Abd Elmessih Shehata**XTREGWHM: Stata module to estimate Wallace-Hussain Random-Effects Panel Data: Ridge and Weighted Regression***by*Emad Abd Elmessih Shehata**XTREGHET: Stata module to estimate MLE Random-Effects with Multiplicative Heteroscedasticity Panel Data Regression***by*Emad Abd Elmessih Shehata**SCOREGOF: Stata module to perform Score test of normality for probit and bivariate probit***by*Richard Chiburis**IVREGRESS2: Stata module to export first and second-stage results similar to ivregress***by*Roy Wada**SIMPPLOT: Stata module creating a plot describing p-values from a simulation by comparing nominal significance levels with the coverages***by*Maarten L. Buis**ICCVAR: Stata module to calculate intraclass correlation (ICC) after xtmixed***by*Eric C. Hedberg**LMSRD: Stata module to compute Spurious Regression Diagnostic after OLS Regression***by*Emad Abd Elmessih Shehata**LMGC: Stata module to compute Granger Causality Test at Higher Order AR(p)***by*Emad Abd Elmessih Shehata**LMEG: Stata module to compute Augmented Engle-Granger Cointegration Test at Higher Order AR(p)***by*Emad Abd Elmessih Shehata**GS2SLS: Stata module to estimate Generalized Spatial Two Stage Least Squares Cross Sections Regression***by*Emad Abd Elmessih Shehata**GS2SLSARXT: Stata module to estimate Generalized Spatial Panel Autoregressive Two Stage Least Squares Cross Sections Regression***by*Emad Abd Elmessih Shehata**GS2SLSAR: Stata module to estimate Generalized Spatial Autoregressive Two Stage Least Squares Regression***by*Emad Abd Elmessih Shehata**DOPARSER: Stata module to look for dta-files used in do-files***by*George Vega Yon**MOVAVG: Stata module using Mata to generate Moving Averages***by*George Vega Yon**LEEBOUNDS: Stata module for estimating Lee (2009) treatment effect bounds***by*Harald Tauchmann**CQIV: Stata module to perform censored quantile instrumental variables regression***by*Victor Chernozhukov & Ivan Fernandez-Val & Sukjin Han & Amanda Kowalski**RESET2: Stata module to calculate specification tests in 2SLS-IV regression analysis***by*Emad Abd Elmessih Shehata**SPGMM: Stata module to estimate Spatial Autoregressive Generalized Method of Moments Cross Sections Regression***by*Emad Abd Elmessih Shehata**SPGMMXT: Stata module to estimate Spatial Panel Autoregressive Generalized Method of Moments Regression***by*Emad Abd Elmessih Shehata**ZCQ: Stata module to score Zurich Claudication Questionnaire***by*Johann Blauth & Monica Daigl**PRWE: Stata module to calculate the PRWE scores from your records***by*Monica Daigl**MAKEHLP: Stata module to automatically create a help file***by*Adrian Mander**EXPL: Stata module to explore folders and files***by*K. Chamara Anuranga**REWEIGHT2: Stata module to reweight survey data to user-defined control totals***by*James Browne**SCDENSITY: Stata module to perform univariate self-consistent density estimation***by*Joerg Luedicke**AIRNET: Stata module to create networks from airline traffic data***by*Zachary Neal**METAPOW: Stata module for simulation based sample size calculations for designing new clinical trials and diagnostic test accuracy studies to update an existing meta-analysis***by*Michael J. Crowther & Sally R. Hinchliffe**LMANLSUR: Stata module to perform Overall System NL-SUR Autocorrelation Tests***by*Emad Abd Elmessih Shehata**LMCOVNLSUR: Stata module to perform Breusch-Pagan Lagrange Multiplier Diagonal Covariance Matrix Test after (NL-SUR) Regressions***by*Emad Abd Elmessih Shehata**LMHNLSUR: Stata module to perform Overall System NL-SUR Heteroscedasticity Tests***by*Emad Abd Elmessih Shehata**LMNNLSUR: Stata module to perform Overall System NL-SUR Non-Normality Tests***by*Emad Abd Elmessih Shehata**R2NLSUR: Stata module to perform Overall System (NL-SUR) System R2, Adj. R2, F-Test, and Chi2-Test***by*Emad Abd Elmessih Shehata**FRACTAL: Stata module to generate fractals***by*Paul Millar**CAL: Stata module to generate calendar***by*Chamara Anuranga**DUMMIES2: Stata module to create indicator variables from categorical variable and vice versa***by*Daniel Klein**GSA: Stata module to perform generalized sensitivity analysis***by*Masataka Harada**ONEMODE: Stata module to produce one-mode projections of a bipartite network***by*Zachary Neal**MERGEMANY: Stata module to merge many files***by*Damian Clarke**PERCOM: Stata module to create permutations and combinations***by*Muhammad Rashid Ansari**VARLOCAL: Stata module to transform values of a variable in local***by*Viviane Sanfelice**STJM: Stata module to fit shared parameter joint models of longitudinal and survival data***by*Michael J. Crowther**COPYCODE: Stata module to produce modular self-written ado files***by*Daniel C. Schneider**SPMSTARD: Stata module to estimate Multiparametric Spatio Temporal AutoRegressive Regression Spatial Durbin Cross Sections Models***by*Emad Abd Elmessih Shehata & Sahra Khaleel A. Mickaiel**SPREGDHP: Stata module to estimate Spatial Panel Han-Philips Linear Dynamic Regression: Lag & Durbin Models***by*Emad Abd Elmessih Shehata & Sahra Khaleel A. Mickaiel**SPREGDPD: Stata module to estimate Spatial Panel Arellano-Bond Linear Dynamic Regression: Lag & Durbin Models***by*Emad Abd Elmessih Shehata & Sahra Khaleel A. Mickaiel**LMFREG: Stata module to Compute OLS Linear vs Log-Linear Functional Form Tests***by*Emad Abd Elmessih Shehata & Sahra Khaleel A. Mickaiel**BCUSE: Stata module to access instructional datasets on Boston College server***by*Christopher F Baum**FRACLOGIT: Stata module to estimate fractional logit model***by*Daniel A. Powers**RWG: Stata module to compute within group interrater reliability***by*Muhammad Rashid Ansari**POPARMS: Stata module for potential outcome parameter estimation***by*Matias D. Cattaneo & David M. Drukker & Ashley Holland**HHI: Stata module to compute Herfindahl index***by*Muhammad Rashid Ansari**TKDENSITY: Stata module for univariate kernel density estimation with calculation on transformed scale***by*Nicholas J. Cox**STPM2ILLD: Stata module to estimate Flexible Parametric Illness-death Models***by*Sally R. Hinchliffe & David A. Scott & Paul Lambert**SEMIPAR: Stata module to compute Robinson's (1988) semiparametric regression estimator***by*Vincenzo Verardi & Nicolas Debarsy**XLS2DTA: Stata module to save Excel files as Stata datasets***by*Daniel Klein**REGINTFE: Stata module to estimate a linear regression model with one interacted high dimensional fixed effect***by*Paulo Guimaraes**LMABGNL: Stata module to compute NLS Autocorrelation Breusch-Godfrey Test at Higher Order AR(p)***by*Emad Abd Elmessih Shehata & Sahra Khaleel A. Mickaiel**LMADURH2: Stata module to compute 2SLS-IV Autocorrelation Dynamic Durbin h, Harvey LM, and Wald Tests***by*Emad Abd Elmessih Shehata & Sahra Khaleel A. Mickaiel**LMADW2: Stata module to compute 2SLS-IV Autocorrelation Durbin-Watson Test at Higher Order AR(p)***by*Emad Abd Elmessih Shehata & Sahra Khaleel A. Mickaiel**LMALB2: Stata module to compute 2SLS-IV Autocorrelation Ljung-Box Test at Higher Order AR(p)***by*Emad Abd Elmessih Shehata & Sahra Khaleel A. Mickaiel**LMFREG2: Stata module to compute 2SLS-IV Linear vs Log-Linear Functional Form Tests***by*Emad Abd Elmessih Shehata & Sahra Khaleel A. Mickaiel**SPREGREXT: Stata module to compute Spatial Panel Random Effects Regression: Lag and Durbin Models***by*Emad Abd Elmessih Shehata & Sahra Khaleel A. Mickaiel**SPREGFEXT: Stata module to compute Spatial Panel Fixed Effects Regression: Lag and Durbin Models***by*Emad Abd Elmessih Shehata & Sahra Khaleel A. Mickaiel**XTEWREG: Stata module to estimate errors-in-variable model with mismeasured regressors***by*Timothy Erickson & Colin Jiang & Robert Parham & Toni Whited**GSGROUP: Stata module to create a group variable and optionally an output dataset for a gsort key***by*Roger Newson**PARALLEL: Stata module for Parallel Computing***by*George Vega Yon**LMCOL: Stata module to compute OLS Multicollinearity Diagnostic Tests***by*Emad Abd Elmessih Shehata & Sahra Khaleel A. Mickaiel**LMCOVVAR: Stata module to compute (VAR) Breusch-Pagan Diagonal Covariance Matrix Test***by*Emad Abd Elmessih Shehata & Sahra Khaleel A. Mickaiel**LMHARCH: Stata module to compute OLS Heteroscedasticity Engle (ARCH) Test***by*Emad Abd Elmessih Shehata & Sahra Khaleel A. Mickaiel**LMAVONNL: Stata module to compute NLS Autocorrelation Von Neumann Ratio Test at Higher Order AR(p)***by*Emad Abd Elmessih Shehata & Sahra Khaleel A. Mickaiel**LMHCWNL: Stata module to compute NLS Heteroscedasticity Cook-Weisberg Test***by*Emad Abd Elmessih Shehata & Sahra Khaleel A. Mickaiel**STNET: Stata module to calculate net survival***by*Enzo Coviello & Paul Dickman & Karri Seppa & Arun Pokhrel**REGTABLE: Stata module to produce file of conditional average treatment effects***by*John Ternovski**ALLSUBSETS: Stata module to perform all subsets (combinatorial) meta-analysis in a set of studies***by*Thomas A. Trikalinos**SUCHOWTEST: Stata module to calculate successive Chow tests on cross section and time series data***by*Diallo Ibrahima Amadou**WRITEPSFRAG: Stata module to translate Stata text to EPS***by*Ryan Kessler**TPM: Stata module to estimate two-part cross-sectional models***by*Federico Belotti & Partha Deb**PERSONAGE: Stata module to calculate people's ages or similar daily date differences***by*Nicholas J. Cox**WORLDSTAT: Stata module to produce a visualisation of the state of world development***by*Damian Clarke**MISSINGPLOT: Stata module to draw plot showing patterns of missing values in a dataset***by*Nicholas J. Cox**FRM: Stata module to estimate and test fractional regression models***by*Joaquim J. S. Ramalho**SHAPLEY2: Stata module to compute additive decomposition of estimation statistics by regressors or groups of regressors***by*Florian Chavez Juarez**TRUECRYPT: Stata module to mount or dismount TrueCrypt volumes***by*Matthew White**NNIPOLATE: Stata module for nearest neighbour interpolation***by*Nicholas J. Cox**SSPECIALREG: Stata module to estimate binary choice model with discrete endogenous regressor via special regressor method***by*Christopher F Baum**STRDIST: Stata module to calculate the Levenshtein distance, or edit distance, between strings***by*Michael Barker**LMNWHITENL: Stata module to compute NLS Non Normality White Test***by*Emad Abd Elmessih Shehata & Sahra Khaleel A. Mickaiel**LMNJBNL: Stata module to compute NLS Non Normality Jarque-Bera Test***by*Emad Abd Elmessih Shehata & Sahra Khaleel A. Mickaiel**LMALBNL: Stata module to compute NLS Autocorrelation Ljung-Box Test at Higher Order AR(p)***by*Emad Abd Elmessih Shehata & Sahra Khaleel A. Mickaiel**LMADWNL: Stata module to compute NLS Autocorrelation Durbin-Watson Test at Higher Order AR(p)***by*Emad Abd Elmessih Shehata & Sahra Khaleel A. Mickaiel**LMADURMNL: Stata module to compute NLS Autocorrelation Dynamic Durbin m Test at Higher Order AR(p)***by*Emad Abd Elmessih Shehata & Sahra Khaleel A. Mickaiel**LMABPNL: Stata module to compute NLS Autocorrelation Box-Pierce Test at Higher Order AR(p)***by*Emad Abd Elmessih Shehata & Sahra Khaleel A. Mickaiel**TDPD: Stata module to analyze third-degree price discrimination***by*Sylvain Weber**IVREG2H: Stata module to perform instrumental variables estimation using heteroskedasticity-based instruments***by*Christopher F Baum & Mark E Schaffer**STNS: Stata module for estimation of net survival***by*Michel Grzebyk & Isabelle Urmès**ZTPFLEX: Stata module to estimate zero-truncated Poisson mixture regression***by*Helmut Farbmacher**ZTNBP: Stata module to estimate zero-truncated NegBin-P regression***by*Helmut Farbmacher**TREATREW: Stata module to estimate Average Treatment Effects by reweighting on propensity score***by*Giovanni Cerulli**FMISS: Stata module to identify variables with problematic missing values***by*Florian Chavez Juarez**PCHIPOLATE: Stata module for piecewise cubic Hermite interpolation***by*Nicholas J. Cox**ADECOMP: Stata module to estimate Shapley Decomposition by Components of a Welfare Measure***by*Joao Pedro Azevedo & Minh Cong Nguyen & Viviane Sanfelice**DRDECOMP: Stata module to estimate Shapley value of growth and distribution components of changes in poverty indicators***by*Joao Pedro Azevedo & Andres Castaneda & Viviane Sanfelice**SKDECOMP: Stata module to estimate Shapley value of growth, price, and distribution components on changes in poverty indicators***by*Bernardo Atuesta & Joao Pedro Azevedo & Andres Castaneda & Viviane Sanfelice**MPOVLINE: Stata module to calculate FGT0, FGT1 and FGT2 by intervals of multiple thresholds***by*Joao Pedro Azevedo & Viviane Sanfelice**NONPARMDE: Stata module to calculate the minimum detectable effect in randomized experiment***by*Joel Middleton & John Ternovski**XVALOLS: Stata module to crossvalidate an OLS regression***by*Joel Middleton & John Ternovski**MOD11: Stata module to generate Chile's National Identification Number (RUT) check digit (DV) (modulo 11)***by*George Vega Yon**PREPARATION: Stata module to facilitate a one-by-one observation of varlist to make it easier to control data and labels***by*Johannes N. Blumenberg**VCF: Stata module to import VCF (Variant Caller Format) Files into Stata and format genotype data***by*Daniel E. Cook**HUE: Stata module to produce graphical display of named Stata colors***by*Seth Lirette**VORTER: Stata module to reorder variables in dataset based on sorted values***by*Daniel Klein**BLP: Stata module to estimate Berry Levinsohn Pakes random coefficients logit estimator***by*David Vincent**MERGEPOLY: Stata module to merge adjacent polygons from a shapefile***by*Robert Picard & Michael Stepner**RADIUSMATCH: Stata module to perform distance-weighted radius matching with bias adjustment***by*Martin Huber & Michael Lechner & Andreas Steinmayr**BIDENSITY: Stata module to produce and graph bivariate density estimates***by*John Luke Gallup & Christopher F Baum**PROLIST: Stata module to list programs, help files, dialogs***by*Chamara Anuranga**NONPARAUNITROOT: Shazam routine to perform the non-parametric unit root test statistic developed by Breitung J.& Gourieroux C.,(1997), Journal of Econometrics, Vol.81(1), pp.7-27***by*Ibrahim Onour**VAR_ESHORTFALL: Shazam routine to evaluate Value at Risk and Expected Shortfall***by*Ibrahim Onour**RBC: Mathematica notebook to solve and simulate Real Business Cycle models***by*Diallo Ibrahima Amadou

### 2011

**REV: Stata module to reverse value order of variables***by*Daniel Klein**COULIARI: Stata module to implement Corbae-Ouliaris frequency domain filter to time series data***by*Jorge Eduardo Perez Perez**ROBUMETA: Stata module to perform robust variance estimation in meta-regression with dependent effect size estimates***by*Eric C. Hedberg**TXTLABDEF: Stata module to define value labels from ASCII (text) file***by*Daniel Klein**DASH: Stata module to score Disabilities of the Arm, Shoulder and Hand***by*Monica Daigl**ROMAN: Stata module for handling Roman numerals and decimal equivalents***by*Nicholas J. Cox**STSURVDIFF: Stata module to compute difference in Kaplan-Meier survival curves***by*Patrick Royston**FRACDYDX: Stata module to evaluate derivatives of fractional polynomials***by*Patrick Royston**STSURVIMPUTE: Stata module for flexible imputation of censored survival data***by*Patrick Royston**RUNNING: Stata module for symmetric nearest neighbour smoothing***by*Peter Sasieni & Patrick Royston & Nicholas J. Cox**STCSTAT2: Stata module to compute Harrell's c-index for flexible parametric models***by*Patrick Royston**STR2D: Stata module to compute explained variation for survival models***by*Patrick Royston**XRIML: Stata module for estimation of reference intervals ('normal ranges') by maximum likelihood***by*Patrick Royston**USELAB: Stata module to list value labels and variables using them***by*Daniel Klein**GENICV: Stata module to generate interaction between continuous (or dummy) variables***by*Daniel Klein**TRUERND: Stata module to generate true random numbers***by*Sergiy Radyakin**DEVNPLOT: Stata module for deviation plots***by*Nicholas J. Cox**WBOPENDATA: Stata module to access World Bank databases***by*Joao Pedro Azevedo**COHEND: Stata module to compute Cohen's d***by*David Tannenbaum**WEATHR: Stata module to display US weather conditions***by*Neal Caren**XTCD: Stata module to investigate Variable/Residual Cross-Section Dependence***by*Markus Eberhardt**XTMG: Stata module to estimate panel time series models with heterogeneous slopes***by*Markus Eberhardt**MULTIPURT: Stata module to run 1st and 2nd generation panel unit root tests for multiple variables and lags***by*Markus Eberhardt**CALIBRATE: Stata module to calibrate survey datasets to population totals***by*John D'Souza**CALIBEST: Stata module to estimate proportions and means after survey data have been calibrated to population totals***by*John D'Souza**FVPREVAR: Stata module to extend fvrevar generating permanent result variables***by*Roger Newson**_GAPPORT: Stata module to calculates seats in party-list proportional representation***by*Ulrich Kohler**OGLM9: Stata module to estimate Ordinal Generalized Linear Models***by*Richard Williams**SPPACK: Stata module for cross-section spatial-autoregressive models***by*David M. Drukker & Hua Peng & Ingmar Prucha & Rafal Raciborski**DATACHECK: Stata module to perform data checks and produce informative output***by*Krishnan Bhaskaran**BETAPRIOR: Stata module to calculate the parameters of a Beta distribution given the mean and variance***by*Adrian Mander**STATPLOT: Stata module for plots of summary statistics, including by category***by*Eric Booth & Nicholas J. Cox**WEEKLYCLAIMS: Stata module to Get Weekly Initial Jobless Claims from the US Dept. of Labor***by*Nikos Askitas**EQUATION: Stata module to Output The Equation of a Regression***by*Liu Wei**OERATIO: Stata module to calculate ratio of observed to expected outcomes***by*Brent McSharry**CHM: Stata module to copy hard missings***by*Daniel Klein**MI_MVNCAT: Stata module to assign "final" values to (mvn) imputed categorical variables***by*Daniel Klein**MIVIF: Stata module to calculate variance inflation factors after mi estimate regress***by*Daniel Klein**GRCOMPARE: Stata module to make group comparisons in binary regression models***by*Jun Xu**HMAP: Stata module to graph a heatmap***by*Austin Nichols**M_STATS: Stata module to implement interpoint distance distribution analysis***by*Pietro Tebaldi**LINEQUATE: Stata module to calculate linear equating constants using the Tucker and Levine Methods***by*Leah McGuire**MISUM: Stata module to calculate summary statistics in MI dataset***by*Daniel Klein**RDPOWER: Stata module to perform power calculations for random designs***by*Eric C. Hedberg**MOSS: Stata module to find multiple occurrences of substrings***by*Robert Picard & Nicholas J. Cox**USD: Stata module to get US dollar exchange rates from the Federal Reserve***by*Nikos Askitas**LABMATCH: Stata module to find observations by label values***by*Austin Nichols**MEQUATE: Stata module to calculate equating constants using the Mean/Mean and Mean/Sigma methods***by*Leah McGuire**COMBINE: Stata module to combine n, mean, and SD from two groups according to the Cochrane-recommended formula for meta-analyses***by*Philip M Jones**SEGREGATION: Stata module to compute segregation indices***by*Carlos Gradin**DYADS: Stata module to transform observations into dyads***by*John-Paul Ferguson**QUICKICC: Stata module to compute intraclass correlation and standard error calculation after xtmixed***by*Eric C. Hedberg**SAVE9: Stata module to save dataset in Stata 9 format***by*Marco G. Ercolani**STOCKCAPIT: Stata module to calculate physical capital stock by the perpetual-inventory method***by*Diallo Ibrahima Amadou**WRITEINPUT: Stata module to write dataset in memory to new do-file as an input command***by*Eric Booth**OBSDIFF: Stata module to identify differences in values across observations for a variable***by*Eric Booth**NUM2WORDS: Stata module to convert numbers to text***by*Eric Booth**FILTERTRACE: Stata module to trace filter or contingency questions***by*Daniel Klein**LABELLIST: Stata module to list value labels***by*Daniel Klein**CLUSTPOP: Stata module to estimate population cluster group assignments***by*Paul Millar**RALPHA: Stata module to generate pseudo-random characters or words***by*Eric Booth**MAC_UNAB: Stata module to unabbreviate Global Macro Lists***by*Eric Booth**ZSCORE06: Stata module to calculate anthropometric z-scores using the 2006 WHO child growth standards***by*Jef Leroy

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