Statistical Software Components
From Boston College Department of Economics
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- VARIRFDELTA: RATS procedure to compute the covariance matrix of an IRF using the delta method

- Tom Doan
- VARLAB: Stata module to save and load variable labels

- Patrick Joly
- VARLABDEF: Stata module to define a value label with values corresponding to variables

- Roger Newson
- VARLAG: Stata module to determine the appropriate lag length in VARs, ECMs

- Patrick Joly
- VARLAGSELECT: RATS procedure to select lag length for a VAR model

- Tom Doan
- VARLOCAL: Stata module to transform values of a variable in local

- Viviane Sanfelice
- VARMADLM: RATS procedure to analyze a VARMA using state-space techniques

- Tom Doan
- VARMI: Stata module to create a dummy variable that takes 1 when all the variable in the varlist are missing

- Adrien Bouguen
- VARPROD: Stata module to Generate Row Product of Variables

- Emad Shehata
- VARRATIO: MATLAB module to calculate heteroskedasticity-consistent variance ratio

- Ludwig Kanzler
- VARSEARCH: Stata program to search variable names and labels

- Jeffrey Arnold
- VARSPECTRUM: RATS procedure to compute multivariate spectral density of a Vector Autoregression

- Tom Doan
- VARTYP: Stata module to set variable types for codebook2

- Paul Bern
- VCE2WAY: Stata module to adjust a Stata command's standard errors for two-way clustering

- Hong Il Yoo
- VCF: Stata module to import VCF (Variant Caller Format) Files into Stata and format genotype data

- Daniel Cook
- VCLOSE: Stata module to close viewer windows

- Nicholas Cox
- VECAR6: Stata module to estimate vector autoregressive (VAR) models (version 6)

- Christopher Baum and Patrick Joly
- VECAR: Stata module to estimate vector autoregressive (VAR) models

- Christopher Baum
- VECECM: Stata module to estimate vector error correction models (ECMs)

- Patrick Joly
- VENNDIAG: Stata module to generate Venn diagrams

- Jens Lauritsen
- VERACRYPT: Stata module to mount or dismount a VeraCrypt volume

- Patrick McNeal and Matthew White
- VIEWRESULTS: Stata module to display results of a command in the Viewer

- Ben Jann
- VINCENTY: Stata module to calculate distances on the Earth's surface

- Austin Nichols
- VIOLIN: Stata module to generate violin plots

- Thomas Steichen
- VIOPLOT: Stata module to produce violin plots with current graphics

- Nicholas Winter and Austin Nichols
- VLC: Stata module to compare value labels across datasets

- Austin Nichols
- VLGEN: Stata module to generate variables and descriptive labels based on how the variables were generated

- James Fiedler
- VLIST: Stata module to expand variable list in command syntax

- David E. Moore
- VMATCH: Stata module to match variables between subjects

- Guy D. van Melle
- VMERGE: Stata module to provide a wrapper for the Stata merge command that provides additional details regarding the results of the update and replace options

- Joe Canner
- VORTER: Stata module to reorder variables in dataset based on sorted values

- Daniel Klein
- VPLPLOT: Stata modules to generate paired data plots

- Nicholas Cox
- VRATIO: RATS procedure to implement variance ratio unit root test procedure

- Tom Doan
- VRATIO: Stata module to compute variation ratio and proportion of maximum heterogeneity (measures of dispersion) for categorical variables

- Jeffrey T. Ward
- VREVERSE: Stata module to reverse existing categorical variable

- Nicholas Cox
- VSAVE: Stata module to save Stata dataset under version control

- Daniel Klein
- VSELECT: Stata module to perform linear regression variable selection

- Charles Lindsey
- VTOKENIZE: Stata module to split a variable into its tokens

- Bill Rising
- WBOPENDATA: Stata module to access World Bank databases

- João Pedro Azevedo
- WBULL: Stata module to fit Weibull distribution by maximum likelihood

- Nicholas Cox
- WCLOGIT: Stata module to perform conditional logistic regression with within-group varying weights

- Adrian Mander
- WDIRESHAPE: Stata module to reshape World Development Indicators database

- P. Wilner Jeanty
- WDISCRIM: Stata module to compute earnings discrimination statistics

- Philippe Van Kerm
- WEAKIV10: Stata module to perform weak-instrument-robust tests and confidence intervals for instrumental-variable (IV) estimation of linear, probit and tobit models

- Keith Finlay, Leandro Magnusson and Mark Schaffer
- WEAKIV: Stata module to perform weak-instrument-robust tests and confidence intervals for instrumental-variable (IV) estimation of linear, probit and tobit models

- Keith Finlay, Leandro Magnusson and Mark Schaffer
- WEAKIVTEST: Stata module to perform weak instrument test for a single endogenous regressor in TSLS and LIML

- Carolin Pflueger and Su Wang
- WEATHR: Stata module to display US weather conditions

- Neal Caren
- WEAVER: Stata module to produce dynamic reports in HTML, LaTeX and PDF

- E.F. Haghish
- WEBDOC: Stata module to create a HTML or Markdown document including Stata output

- Ben Jann
- WEBIMAGE: Stata module to print images from web files in pdf, png, jpeg, gif, and bmp format

- E.F. Haghish