# Boston College Department of Economics

# Statistical Software Components

Phone: 617-552-3670

Fax: +1-617-552-2308

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

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**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

### Impact factors

- Simple (last 10 years)
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- Aggregate (10)

**Access and download statistics**

**Top item:**

- By downloads (last 12 months)

**Undated material is presented at the end, although it may be more recent than other items**

### 2017

**S458306 XTCAEC: Stata module to estimate heterogeneous error correction models in cross-sectional dependent panel data***by*Korbinian Nagel**S458305 NW_WCC: Stata module to calculate Weighted Clustering Coefficients (WCC) in Complex Direct Networks***by*Charlie Joyez**S458304 RCTMISS: Stata module to analyse a randomised controlled trial (RCT) allowing for informatively missing outcome data***by*Ian White**S458303 WHEREIS: Stata module to keep track of ancillary programs and files***by*German Rodriguez**S458302 RSZ: Stata module to draw a stratified simple random sample, a systematic sample, or a randomly split zones sample, with probabilities proportional to size***by*Cong Ye**S458301 RMPW: Stata module to implement the RMPW method of causal mediation analysis to decompose treatment effects into "direct" and "indirect" effects***by*Jonah Deutsch & Matthew Jacobus & Alma Vigil**S458300 MEDSEM: Stata module to perform mediation analysis using structural equation modelling***by*Mehmet Mehmetoglu**S458299 EXPLORELABS: Stata module to explore the use of value labels in the dataset***by*Malte Kaukal**S458298 KONFOUND: Stata module to quantify robustness of causal inferences***by*Kenneth A. Frank & Ran Xu**S458297 MAUCHLY: Stata module to compute Mauchly’s sphericity test for repeated measures ANOVA models***by*Muhammad Rashid Ansari**S458296 ALBATROSS: Stata module to create albatross plots***by*Sean Harrison**S458295 DRMMWS: Stata module to perform doubly-robust marginal mean weighting through stratification***by*Ariel Linden**S458294 TEXMERGE: Stata module to merge many .tex files into one and then compile the final file to .pdf***by*Iain Snoddy**S458293 XMISS: Stata module to perform cross-tabulation of missing data***by*Phil Clayton**S458292 STCOMLIST: Stata module to list cumulative function in presence of competing risks***by*Phil Clayton**S458291 PLSSEM: Stata module to implement Partial least squares structural equation modelling (PLS-SEM)***by*Sergio Venturini & Mehmet Mehmetoglu**S458290 MSEFFECT: Stata module to estimate the mean effect size of (binary/multiple group) treatment on multiple outcomes***by*Zizhong Yan**S458289 STPM2_STANDSURV: Stata module to obtain standardized survival curves after fitting an stpm2 survival model***by*Paul Lambert**S458287 HETOP: Stata module for estimating heteroskedastic ordered probit models with ordered frequency data***by*Benjamin R. Shear & sean f. reardon**S458286 PCPANEL: Stata module to perform power calculations for randomized experiments with panel data, allowing for arbitrary serial correlation***by*Fiona Burlig & Louis Preonas & Matt Woerman

### 2016

**S458285 MTEBINARY: Stata module to compute Marginal Treatment Effects (MTE) With a Binary Instrument***by*Amanda Kowalski & Yen Tran & Ljubica Ristovska**S458284 QLQC15: Stata module for scoring of the EORTC QLQ-C15-PAL***by*Niels Henrik Bruun**S458283 KAPPAETC: Stata module to evaluate interrater agreement***by*Daniel Klein**S458282 TW3XLS: Stata module to export publication-ready three-way and four-way tables into xls or xlsx***by*Andrey Ampilogov**S458281 NWSTRENGTHCENT: Stata module to compute Freeman's centrality index (1979) for strength centrality***by*Charlie Joyez**S458280 NWCLUSTER: Stata module to compute the clustering coefficient of a network's vertices***by*Charlie Joyez**S458279 PROBITFE: Stata module to compute analytical and jackknife bias corrections for fixed effects estimators of panel probit models with individual and time effects***by*Mario Cruz-Gonzalez & Ivan Fernandez-Val & Martin Weidner**S458278 LOGITFE: Stata module to compute analytical and jackknife bias corrections for fixed effects estimators of panel logit models with individual and time effects***by*Mario Cruz-Gonzalez & Ivan Fernandez-Val & Martin Weidner**S458277 KANOM: Stata module to estimate Krippendorff's alpha for nominal variables***by*Pablo Mitnik**S458276 RWOLF: Stata module to calculate Romano-Wolf stepdown p-values for multiple hypothesis testing***by*Damian Clarke**S458275 STDDIFF: Stata module to compute Standardized differences for continuous and categorical variables***by*Ahmed M. Bayoumi**S458274 XTREGCLUSTER: Stata module to estimate partially heterogeneous linear panel data with fixed effects***by*Demetris Christodoulou & Vasilis Sarafidis**S458273 OPTASPECT: Stata module to compute heuristic criteria for optimal aspect ratios in a two-variable line plot***by*Demetris Christodoulou**S458272 ENTROPYETC: Stata module for entropy and related measures for categories***by*Nicholas J. Cox**S458271 CNSTOCK: Stata module to download stock names and codes for Chinese listed companies***by*Chuntao Li & Zijian Li & Yuan Xue**S458270 CPRDENTUTIL: Stata module to convert CPRD entity data variables to numeric variables***by*Roger Newson**S458269 MROBUST: Stata module to estimate model robustness and model influence***by*Cristobal Young & Katherine Holsteen**S458268 STRKEEP: Stata module to clean string variables by keeping only whitelisted characters***by*Roger Chu**S458267 VRATIO: Stata module to compute variation ratio and proportion of maximum heterogeneity (measures of dispersion) for categorical variables***by*Jeffrey T. Ward**S458266 SUBINFILE: Stata module to perform byte-based substitution for the contents of a text-formatted file***by*Chuntao Li & Yuan Xue & Rong GAO**S458265 WTDTTT: Stata module to estimate parameters of the ordinary and reverse Waiting Time Distribution (WTD) by maximum likelihood***by*Henrik Stovring**S458264 GEOROUTE: Stata module to calculate travel distance and travel time between two addresses or two geographical points***by*Sylvain Weber & Martin Péclat**S458263 NWRECIPROCITY: Stata module to calculate reciprocity metrics for (weighted) directed networks***by*Charlie Joyez**S458262 NWDISPARITY: Stata module to calculate the disparity of a network's nodes***by*Charlie Joyez**S458261 NWANND: Stata module to compute ANND (average nearest neighbor degree) and related measures***by*Charlie Joyez**S458260 CNINTRADAY: Stata module to Download intraday stock quotations for a list of stock codes in a given date from SinaFinance***by*Chuntao Li & Yuan Xue**S458259 IGENERATE: Stata module to apply a variety of coding schemes, including weighted effect coded interactions***by*Alexander Schmidt-Catran**S458258 FRAMINGHAM30: Stata module to calculate 30-year risk of cardiovascular disease***by*Aliaksandr Amialchuk**S458257 PANELL: Stata module to display panel length for a given set of variables***by*Jan Helmdag**S458256 XTFIXEDCOEFTVCU: Stata module to estimate Panel Data Models with Coefficients that Vary over Time and Cross-sectional Units***by*Diallo Ibrahima Amadou**S458255 ISOGRAPH: Stata module to compute inequality over logit ranks of social hierarchy***by*Louis Chauvel & Eyal Bar-Haim**S458254 AEXTLOGIT: Stata module to compute average elasticities for fixed effects logit***by*J.M.C. Santos Silva**S458253 VSAVE: Stata module to save Stata dataset under version control***by*Daniel Klein**S458252 SAVE13: Stata module to save data in version 13 format***by*Michael Stepner**S458251 BLINDSCHEMES: Stata module to provide graph schemes sensitive to color vision deficiency***by*Daniel Bischof**S458250 SAVE12: Stata module to save data in version 12 format***by*Michael Stepner**S458249 PPML_PANEL_SG: Stata module to estimate "structural gravity" models via Poisson PML***by*Tom Zylkin**S458248 XTMIXEDIOU: Stata module to estimate Linear mixed effects Integrated Ornstein-Uhlenbeck model***by*Rachael Hughes**S458247 UIRT: Stata module to fit unidimensional Item Response Theory models***by*Bartosz Kondratek**S458246 DIAGRAM: Stata module to analyze executed ado programs and produce a dynamic profile diagram***by*E.F. Haghish**S458245 FOREC_INSTAB: Stata module to perform forecast comparison and forecast rationality tests***by*Barbara Rossi**S458244 VERACRYPT: Stata module to mount or dismount a VeraCrypt volume***by*Patrick McNeal & Matthew White**S458243 STPM2CR: Stata module to estimate flexible parametric competing risks regression models***by*Sarwar Islam & Paul Lambert & Mark Rutherford**S458242 CHINAGCODE: Stata module to geocode Chinese addresses***by*Chuntao Li & Yuan Xue**S458241 MI_IMPUTE_WLOGIT: Stata module to perform weighted multiple imputation for binary/categorical variables***by*Tra My Pham**S458240 REGXFE: Stata module to fit a linear high-order fixed-effects model***by*Fernando Rios-Avila**S458239 PRODEST: Stata module for production function estimation based on the control function approach***by*Gabriele Rovigatti & Vincenzo Mollisi**S458238 NEXT: Stata module to perform regression discontinuity***by*Mark C. Long & Jordan Rooklyn**S458237 QRISK2CMD: Stata module to run QRISK2 from within Stata***by*Roger Newson**S458236 XTISTEST: Stata module to perform Portmanteau test for panel serial correlation***by*Jesse Wursten**S458235 XTHRTEST: Stata module to perform Born & Breitung Bias-corrected HR-test for first order panel serial correlation***by*Jesse Wursten**S458234 MAXDRAWDOWN: Stata module to calculate the maximum drawdown of a stock, fund or other financial product***by*Zhiyong Li**S458233 GSDATA: Stata module to download high frequency data for a list of stock in ShangHai or ShenZhen markets***by*Zhiyong Li**S458232 PSTRATA: Stata module for optimal propensity score stratification***by*Ariel Linden**S458231 SDMXUSE: Stata module to import data from statistical agencies using the SDMX standard***by*Sébastien Fontenay**S458230 LVALUES: Stata module for letter value calculation***by*Nicholas J. Cox**S458229 GINTREG: Stata module to perform Generalized Interval Regression***by*Jake Orchard**S458228 LMNWHITE2: Stata Module to Compute 2SLS-IV White IM Non Normality Test***by*Emad Abd Elmessih Shehata & Sahra Khaleel A. Mickaiel**S458227 LMNJBXT: Stata Module to Compute Panel Data Non Normality Jarque-Bera Test***by*Emad Abd Elmessih Shehata & Sahra Khaleel A. Mickaiel**S458226 LMNAD2: Stata Module to Compute 2SLS-IV Non Normality Anderson-Darling Test***by*Emad Abd Elmessih Shehata & Sahra Khaleel A. Mickaiel**S458225 LMABPGNL: Stata Module to Compute NLS Autocorrelation Breusch-Pagan-Godfrey Test at Higher Order AR(p)***by*Emad Abd Elmessih Shehata & Sahra Khaleel A. Mickaiel**S458224 LMABPG2: Stata Module to Compute 2SLS-IV Autocorrelation Breusch-Pagan-Godfrey Test at Higher Order AR(p)***by*Emad Abd Elmessih Shehata & Sahra Khaleel A. Mickaiel**S458223 GB2REG: Stata module to perform Regression with a GB2 Error Term***by*Jake Orchard**S458222 RGB2: Stata module to generate GB2 random numbers***by*Jake Orchard**S458221 RSGT: Stata module to generate skewed generalized t random numbers***by*Jake Orchard**S458220 TIMEIT: Stata module to provide single line version of timer on/off***by*Jesse Wursten**S458219 XTQPTEST: Stata module to perform Born & Breitung Bias-corrected LM-based test for serial correlation***by*Jesse Wursten**S458218 XTDPDQML: Stata module to perform quasi-maximum likelihood linear dynamic panel data estimation***by*Sebastian Kripfganz**S458217 FACTORN: Stata module to calculate the factors of an integer***by*Jay Dev Dubey**S458216 RCL: Stata module for estimation and simulation of random coefficient logit models***by*Szabolcs Lorincz**S458215 RCOLP2MAT: Stata module to produce a two-way table with row and column percentages as a matrix***by*Loris P. Fagioli**S458214 TAB2MAT: Stata module to produce a one-way table as a matrix***by*Loris P. Fagioli**S458213 FTOOLS: Stata module to provide alternatives to common Stata commands optimized for large datasets***by*Sergio Correia**S458212 PATH: Stata module to support file path manipulation***by*Daniel Klein**S458211 GOOGLEPLACES: Stata module to return search results from Google Places***by*Taylor Crockett & Stephen Barnes & Chris Schmidt**S458210 XTDPDML: Stata module to estimate Dynamic Panel Data Models using Maximum Likelihood***by*Richard Williams & Paul Allison & Enrique Moral Benito**S458209 WEBDOC: Stata module to create a HTML or Markdown document including Stata output***by*Ben Jann**S458208 LABONE: Stata module to label variables after import excel***by*Kerry Du**S458207 MULTISTATE: Stata module to perform multi-state survival analysis***by*Michael J. Crowther**S458206 PWCORRF: Stata module to compute pairwise correlations efficiently, with builtin reshape functionality***by*Jesse Wursten**S458205 STATASTATES: Stata module to add US state identifiers to dataset***by*William L. Schpero**S458204a XTCD2: Stata module to test for weak cross sectional dependence***by*Jan Ditzen**S458204 XTDCCE2: Stata module to estimate heterogeneous coefficient models using common correlated effects in a dynamic panel***by*Jan Ditzen**S458203 HHI5: Stata module to generate Herfindahl-Hirschman index (HHI) variables***by*Lian Yujun**S458202 BDIFF: Stata module to compute Bootstrap and Permutation tests for difference in coefficients between two groups***by*Lian Yujun**S458201 MATRIXTOOLS: Stata module to build, present and style Stata matrices***by*Niels Henrik Bruun**S458200 RANDOMSELECT: Stata module to randomly select and tag observations***by*Sean Higgins**S458199 TED: Stata module to test Stability of Regression Discontinuity Models***by*Giovanni Cerulli**S458198 RCALL: Stata module to provide seamless R in Stata***by*E.F. Haghish**S458197 WEBIMAGE: Stata module to print images from web files in pdf, png, jpeg, gif, and bmp format***by*E.F. Haghish**S458196 SPREGXT: Stata Econometric Toolkit to Estimate Spatial Panel Regression Models***by*Emad Abd Elmessih Shehata**S458195 DUDAHART: Stata module to calculate and graph Duda-Hart cluster stopping indices from distance matrix***by*Brendan Halpin**S458194 CPRDHESUTIL: Stata module for inputting HES-linkage datasets into Stata***by*Roger Newson**S458193 CPRDLINKUTIL: Stata module for inputting CPRD linkage-source datasets into Stata***by*Roger Newson**S458192 FQREG: Stata module to estimate quantile regression for non-negative data with a mass-point at zero and an upper bound***by*J.A.F. Machado & J.M.C. Santos Silva & Kehai Wei**S458191 COMBINATORICS: Stata module to evaluate the performance of all possible 2^n models generated with a given set of n possible explanatory variables***by*Claire Vandendriessche**S458190 CHOI_LR_TEST: Stata module to perform Choi's likelihood ratio test***by*William D. Dupont & W. Dale Plummer, Jr.**S458189 MGBE: Stata module to compute Multimodel Generalized Beta Estimator***by*Yutong Duan & Paul T. von Hippel**S458188 COVBAL: Stata module for producing covariate balance statistics***by*Ariel Linden**S458187 THEILDECO: Stata module to produce refined Theil index decomposition by group and quantile***by*Tim Liao**S458186 SCANDATA: Stata module to scan a dataset for specified characteristics***by*Malte Kaukal**S458185 GRPDF: Stata module to produce PDFs from memory graphs***by*Christopher F Baum**S458184 STDTABLE: Stata module to standardize cross-tabulations to pre-specified row and column totals***by*Maarten L. Buis**S458183 XDIR: Stata module to create a resultsset with one observation per file in a directory***by*Roger Newson**S458182 TIMESTAMP: Stata module to obtain a UNIX timestamp and the current time of a user-specified timezone***by*Lars Zeigermann**S458181 GROUP3HDFE: Stata module to compute number of restrictions in a linear regression model with three high-dimensional fixed effects***by*Paulo Guimaraes**S458180 GROUP2HDFE: Stata module to compute number of restrictions in a linear regression model with two high-dimensional fixed effects***by*Paulo Guimaraes**S458179 PSESTIMATE: Stata module to estimate the propensity score proposed by Imbens and Rubin***by*Alvaro Carril**S458178 FXBCR: Stata Module to Estimate Benefit-Cost Ratio (BCR)***by*Emad Abd Elmessih Shehata & Sahra Khaleel A. Mickaiel**S458177 FBEP: Stata Module to Estimate Financial Break-Even Point Analysis (BEP)***by*Emad Abd Elmessih Shehata & Sahra Khaleel A. Mickaiel**S458176 DLAGIF: Stata Module to Estimate Irving Fisher Arithmetic Distributed Lag Model***by*Emad Abd Elmessih Shehata**S458175 FIRTHFIT: Stata module to compute model fit for Firth's logit models***by*Alexander Staudt**S458174 MKDENSITY: Stata module to graph kernel densities of several variables***by*Szabolcs Lorincz**S458173 BCSTATS: Stata module to analyze back check (field audit) data and compare it to the original survey data***by*Matthew White**S458172 LOWYSEATTLEB: Stata module for creating, transforming, labeling, variables***by*Elliott Lowy**S458171 LOWYSEATTLEA: Stata module for tables, statistics, data management, output***by*Elliott Lowy**S458170 LOWYSEATTLE: Stata module for managing settings and recompiling***by*Elliott Lowy**S458169 TAXBENEXTRACT: Stata module to extract data from OECD TAXBEN model***by*Alexandre Desbuquois**S458168 COSPECTDENS: Stata module to compute cross spectra***by*Huseyin Tastan**S458167 BINEQ: Stata module to analyze multidimensional inequality in two dimensions of wellbeing***by*Hong Il Yoo**S458166 LINUXLSD1: Stata module to create a dataset of file records from the output of a Linux ls -d1 command***by*Roger Newson**S458165 SILHOUETTE: Stata module to calculate and graph silhouette width for cluster analysis***by*Brendan Halpin**S458164 LIBHTML: Stata module providing an object oriented implementation of HTML in Mata***by*Billy Buchanan**S458163 LIBD3: Stata module providing D3js Mata library***by*Billy Buchanan**S458162 RANGEJOIN: Stata module to form pairwise combinations if a key variable is within range***by*Robert Picard**S458161 RANGESTAT: Stata module to generate statistics using observations within range***by*Robert Picard & Roberto Ferrer & Nicholas J. Cox**S458160 WTD_PERC: Stata module to calculate percentile of inter-arrival density based on the parametric Waiting Time Distribution (WTD)***by*Henrik Stovring**S458159 ROLLING3: Stata module to compute predicted values for rolling regressions***by*Muhammad Rashid Ansari**S458158 GENQREG: Stata module to perform Generalized Quantile Regression***by*Matthew Baker**S458157 QREGPD: Stata module to perform Quantile Regression for Panel Data***by*Matthew Baker**S458156 SIMARWILSON: Stata module to perform Simar & Wilson efficiency analysis***by*Harald Tauchmann**S458155 OPENCAGEGEO: Stata module for forward and reverse geocoding using the OpenCage Geocoder API***by*Lars Zeigermann**S458154 STRMST2: Stata module to compare restricted mean survival time***by*Angel Cronin**S458153 MHTEXP: Stata module to perform multiple hypothesis testing correction procedure***by*Joseph Seidel & Yang Xu**S458152 SPECTDENS: Stata module to compute sample spectral density***by*Huseyin Tastan**S458151 DEPTHPLOT: Stata module to plot one or more variables with depth as vertical axis***by*Nicholas J. Cox**S458150 STAN: Stata module to use Stan software for Bayesian modeling***by*Robert Grant**S458149 SYNCMRATES: Stata module to compute child mortality rates using synthetic cohort probabilities***by*Edoardo Masset**S458148 TRIMLABS: Stata module to trim variable labels***by*Johannes N. Blumenberg**S458147 LOG2MARKUP: Stata module to transform a Stata text log into a markup document***by*Niels Henrik Bruun**S458146 XTHYBRID: Stata module to estimate hybrid and correlated random effect (Mundlak) models within the framework of generalized linear mixed models (GLMM)***by*Francisco (Paco) Perales & Reinhard Schunck**S458145 MARHIS: Stata module to produce predictive margins and marginal effects plots with histogram after regress, logit, xtmixed and mixed***by*Enrique Hernández**S458144 IATI: Stata module to import International Aid Transparency Initiative data***by*Liam Swiss**S458143 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***by*Robert Grant**S458142 TAIL: Stata module to print the tail observations (last observations in data set)***by*Sean Higgins**S458141 HEAD: Stata module to print the head observations (first observations in data set)***by*Sean Higgins**S458140 EXAMPLEOBS: Stata module to prints example observations***by*Sean Higgins**S458139 STATAPUSH: Stata module to send push notifications to mobile device***by*William L. Schpero & Vikram Jambulapati**S458138 CMITEST: Stata module to implement testing and inference methods for conditional moment inequalities/equalities models***by*Donald W.K. Andrews & Wooyoung Kim & Xioaxia Shi**S458137 IETOOLKIT: Stata module providing commands specially developed for Impact Evaluations***by*Kristoffer Bjärkefur**S458136 GUTTMANL: Stata module to produce Guttman lower bound reliability coefficients***by*Daniel Klein**S458135 SPREGCS: Stata Module Econometric Toolkit to Estimate Spatial Cross Section Regression Models***by*Emad Abd Elmessih Shehata**S458134 ABSDID: Stata module to estimate treatment effect with Abadie semiparametric DID estimator***by*Kenneth Houngbedji**S458133 LORENZ: Stata module to estimate and display Lorenz curves and concentration curves***by*Ben Jann**S458132 EUROUSE: Stata module to import data from Eurostat***by*David Leite Neves**S458131 ROCTABI: Stata module for performing nonparametric ROC analysis using summarized data***by*Ariel Linden**S458049 JC: Stata module to dynamically load and call Java plugins***by*Philipp Cornelius**OCT001 TDICPS: OCTAVE module to Transform an Integrated Variable into Cumulative Partial Sums for Negative and Positive Components with Deterministic Trend Parts***by*Abdulnasser Hatemi-J & Alan Mustafa

### 2015

**S458288 SEARCHFOR: Stata module to search for texts in selected or all string variables***by*Attaullah Shah**S458130 EGENMISC: Stata module to provide various egen functions***by*Matthieu Gomez**S458129 SUMUP: Stata module to compute summary statistics by group***by*Matthieu Gomez**S458128 TABSHEET: Stata module to rapidly output cross-tabular statistics to a tab-delimited file***by*Jonathan Mendelson**S458127 CLASSTABI: Stata module for for generating classification statistics and table using summarized data***by*Ariel Linden**S458126 ALMON: Stata Module to Estimate Shirley Almon Generalized Polynomial Distributed Lag Model***by*Emad Abd Elmessih Shehata**S458125 SF12: Stata module to validate sf12 input and calculate sf12 version 2 t scores***by*Niels Henrik Bruun**S458124 XTILETEST: Stata module to test equality of percentiles across groups of observations***by*Christopher F Baum**S458123 TABEX: Stata module to efficiently export tabulations to Excel***by*Jack Jerome**S458122 CALINSKI: Stata module to compute Calinski-Harabasz cluster stopping index from distance matrix***by*Brendan Halpin**S458121 BOOTTEST: Stata module to provide fast execution of the wild bootstrap with null imposed***by*David Roodman**S458120 MPI: Stata module to compute the Alkire-Foster multidimensional poverty measures and their decomposition by deprivation indicators and population sub-groups***by*Daniele Pacifico & Felix Pöge**S458119 VAF: Stata module to compute mediation effect in SEM***by*Mehmet Mehmetoglu**S458118 DTAPAPER: Stata module to create an HTML datapaper***by*Christoph Thewes**S458117 ART: Stata module for complex sample size calculation in randomized trials***by*Abdel Babiker & Sophie Barthel & Patrick Royston**S458116 NROW: Stata module to rename variables as their nth-row values***by*Alvaro Carril**S458115 PCA2: Stata module to apply Principal Component Analisys (PCA) to standard and GMM-style instrumental variables***by*Maria Elena Bontempi & Irene Mammi**S458114 RANDOMID: Stata module to identify every observation in the dataset with random alphanumeric characters***by*Raúl Torres**S458113 RANDINF: Stata module to calculate the treatment effect and p-value of a stratified randomized controlled experiment***by*John Ternovski**S458112 LVR2PLOT2: Stata module to produce leverage versus squared residual plot with Cook's D***by*Maarten L. Buis**S458111 CONINDEX: Stata module to perform estimation of concentration indices***by*Owen O'Donnell & Stephen O'Neill & Tom Van Ourti & Brendan Walsh**S458110 UCSPSPLIT: Stata module to extract paradata from a string variable produced by the universal client-side paradata script***by*Kai Willem Weyandt & Lars Kaczmirek