SSC Stata modules
created or revised 2019-11-12 to 2019-12-12

SPECC  module to create specification curves

Authors: Benjamin Daniels      Req: Stata version 13.1

Created: 2019-12-07
 

CIWIDTH_PROPORTIONS_MC  module to calculate precision and power for a CI-based comparison of two independent proportions (RD, RR, or OR)

Authors: Mark Chatfield      Req: Stata version 16

Created: 2019-12-01
 

METAFRAG  module to compute the fragility index for meta-analysis

Authors: Ariel Linden      Req: Stata version 16

Created: 2019-12-01
 

MALMQ2  module to compute Malmquist Productivity Index 

Authors: Kerry Du      Req: Stata version 16

Created: 2019-11-23
 

HETTREATREG  module to compute diagnostics for linear regression when treatment effects are heterogeneous

Authors: Tymon Sloczynski      Req: Stata version 12.1 

Created: 2019-11-23
 

XTHST  module to test slope homogeneity in large panels

Authors: Jan Ditzen  Tore Bersvendsen      Req: Stata version 14 

Created: 2019-11-14
 

UDIFF  module to estimate the generalized unidiff model for individual-level data

Authors: Ben Jann  Simon Seiler      Req: Stata version 11

Revised: 2019-11-14
 

METAPREG  module to compute fixed and random effects meta-analysis and meta-regression of proportions

Authors: Victoria Nyawira Nyaga      Req: Stata version 14

Revised: 2019-11-12
 

TWBY  module to create a cross-tabulation of graphs

Authors: Maarten L. Buis      Req: Stata version 11.2

Revised: 2019-11-23
 

WORDCB  module to create a codebook in MS Word format

Authors: Troy Payne      Req: Stata version 15.1

Revised: 2019-12-07
 

XTGEEBCV  module to compute bias-corrected (small-sample) standard errors for generalized estimating equations

Authors: John A. Gallis   Fan Li  Elizabeth L. Turner      Req: Stata version 15

Revised: 2019-12-07
 

PPMLHDFE  module for Poisson pseudo-likelihood regression with multiple levels of fixed effects

Authors: Sergio Correia  Paulo Guimaraes  Thomas Zylkin      Req: Stata version 11.2, reghdfe, ftools  from SSC (q.v.)

Revised: 2019-11-18
 

LCLOGIT2  module to estimate latent class conditional logit models

Authors: Hong Il Yoo      Req: Stata version 13.1

Revised: 2019-11-18
 

FOREST  module to visualize results from multiple regressions on a single independent variable

Authors: Benjamin Daniels      Req: Stata version 13.1

Revised: 2019-12-11
 

SUMSTATS  module to produce tables of summary statistics

Authors: Benjamin Daniels      Req: Stata version 15.1

Revised: 2019-12-07
 

OUTWRITE  module to consolidate multiple regressions and export the results to a .xlsx, .xls, .csv, or .tex file

Authors: Benjamin Daniels      Req: Stata version 14.1

Revised: 2019-12-07
 

ODKSPLIT  module to split and label multiple response variables generated from ODK or SurveyCTO

Authors: Mehrab Ali      Req: Stata version 13

Revised: 2019-11-24
 

PMSAMPSIZE  module to calculate the minimum sample size required for developing a multivariable prediction model

Authors: Joie Ensor      Req: Stata version 12.1

Revised: 2019-11-14
 

BETTERBAR  module to produce bar graphs with optional standard error bars and cross-group comparisons

Authors: Benjamin Daniels      Req: Stata version 13.1

Revised: 2019-12-07
 

ELABEL  module to extend the label commands

Authors: Daniel Klein      Req: Stata version 11.2

Revised: 2019-12-11
 

METAMISS2  module accounting for missing outcome data in meta-analysis

Authors:  Anna Chaimani  Ian White      Req: Stata version 13 

Revised: 2019-12-01
 

SSAGGREGATE  module to create shock-level aggregates for shift-share IV

Authors: Kirill Borusyak   Peter Hull  Xavier Jaravel      Req: Stata version 11

Revised: 2019-12-07
 

SUMMTAB  module to compute summary statistics overall and/or across levels of a categorical variable 

Authors: John A. Gallis      Req: Stata version 15

Revised: 2019-11-23
 

PCPANEL  module to perform power calculations for randomized experiments with panel data, allowing for arbitrary serial correlation

Authors: Fiona Burlig  Louis Preonas  Matt Woerman      Req: Stata version 9

Revised: 2019-12-07
 

FTOOLS  module to provide alternatives to common Stata commands optimized for large datasets

Authors: Sergio Correia      Req: Stata version 11.2

Revised: 2019-11-18
 

TAXBENEXTRACT  module to extract data from OECD TAXBEN model 

Authors:  Alexandre Desbuquois      Req: Stata version 13

Revised: 2019-11-23
 

STRMST2  module to compare restricted mean survival time

Authors: Angel Cronin      Req: Stata version 10

Revised: 2019-12-01
 

EVENTSTUDY2  module to perform event studies with complex test statistics

Authors: Thomas Kaspereit      Req: Stata version 12

Revised: 2019-11-14
 

NSTAGE  module for multi-arm, multi-stage (MAMS) trial designs for time-to-event outcomes

Authors: Patrick Royston  Daniel Bratton   Babak Choodari-Oskooei   Frederike Maria-Sophie Barthel      Req: Stata version 10

Revised: 2019-12-10
 

REGHDFE  module to perform linear or instrumental-variable regression absorbing any number of high-dimensional fixed effects

Authors: Sergio Correia      Req: Stata version 11.2

Revised: 2019-11-18
 

IVREG2  module for extended instrumental variables/2SLS and GMM estimation

Authors: Christopher F Baum  Mark E Schaffer  Steven Stillman      Req: Stata version 11.2 and ranktest from SSC

Revised: 2019-11-23
 

End of recent additions and updates