Recent SSC Stata modules

SSC Stata modules
created or revised 2014-11-21 to 2014-12-21



PPSSAMPFORD module to draw sample with probability proportionate to size, without replacement, using Sampford's method
Authors: Jonathan Mendelson Req: Stata version 12.1
Created: 2014-12-15
 

XTVAR module to compute panel vector autoregression
Authors: Tobias Cagala Ulrich Glogowsky Req: Stata version 12
Created: 2014-12-15
 

REGCHECK module to examine regression assumptions
Authors: Mehmet Mehmetoglu Req: Stata version 13
Created: 2014-12-15
 

BIPOLATE module to perform bivariate interpolation and smooth surface fitting for values given at irregularly distributed points
Authors: Joe Canner Req: Stata version 12
Created: 2014-12-15
 

CV module to compute coefficient of variation after regress
Authors: Mehmet Mehmetoglu Req: Stata version 13
Created: 2014-12-09
 

CAPASS module to wrap Stata's assert command, throws error messages
Authors: Max Loeffler Req: Stata version 13
Created: 2014-12-09
 

FASTCOLLAPSE module to make dataset of summary statistics using fast hash-based algorithm
Authors: Andrew Maurer Req: Stata version 12
Revised: 2014-11-25
 

HASH module to combine multiple integer variables into a single variable using non-minimal perfect hashing
Authors: Andrew Maurer Req: Stata version 12
Revised: 2014-11-25
 

PARSEUAS module to extract detailed information from user agent strings
Authors: Joss Rossmann Tobias Gummer Req: Stata version 12.1
Created: 2014-11-22
 

PPSCHROMY module to draw sample with probability proportionate to size, using Chromy's method of sequential random sampling
Authors: Jonathan Mendelson Req: Stata version 12.1
Revised: 2014-12-15
 

MARKDOC module to convert SMCL logfiles to Markdown format
Authors: E.F. Haghish Req: Stata version 11
Revised: 2014-11-22
 

XTCIPS module to compute Pesaran Panel Unit Root Test in the Presence of Cross-section Dependence
Authors: Maximo Sangiacomo Req: Stata version 9
Revised: 2014-12-15
 

VSELECT module to perform linear regression variable selection
Authors: Charles Lindsey Req: Stata version 11.1
Revised: 2014-12-15
 

WEAKIVTEST module to perform weak instrument test for a single endogenous regressor in TSLS and LIML
Authors: Jose Luis Montiel Olea Carolin E. Pflueger Su Wang Req: Stata version 10 and avar from SSC (q.v.)
Revised: 2014-12-09
 

COEFPLOT module to plot regression coefficients and other results
Authors: Ben Jann Req: Stata version 11
Revised: 2014-12-09
 

SURVEYBIAS module to compute the B and B_w multinomial accuracy measures for polling bias
Authors: Kai Arzheimer Req: Stata version 11
Revised: 2014-12-15
 

DIFF module to perform Differences in Differences estimation
Authors: Juan M. Villa Req: Stata version 10.0
Revised: 2014-11-22
 

XTABOND2 module to extend xtabond dynamic panel data estimator
Authors: David Roodman Req: Stata version 7.0 (with 21jun2002 update); version 9.0 for Mata version
Revised: 2014-12-09
 

PSMATCH2 module to perform full Mahalanobis and propensity score matching, common support graphing, and covariate imbalance testing
Authors: Edwin Leuven Barbara Sianesi Req: Stata version 11
Revised: 2014-11-25
 
End of recent additions and updates