Statistical Software Components
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- PNG2RTF: Stata module to include PNG graphics in RTF documents

- Austin Nichols
- PNRCHECK: Stata module to verify the check digit in Swedish personal identification number

- Nicola Orsini
- POBREZAECU: Stata module to predict poverty in Ecuador

- Daniel Jaramillo Calderonn and Sergio Guerra
- POI2HDFE: Stata module to estimate a Poisson regression with two high-dimensional fixed effects

- Paulo Guimaraes
- POLAR: Stata module to plot polar coordinates

- Joe Canner
- POLARSPIKE: Stata module for polar spike graphs

- Asjad Naqvi
- POLYSPLINE: Stata module to generate sensible bases for polynomials and other splines

- Roger Newson
- POOLEDSD: Stata module to calculate pooled standard deviation for a continuous variable by a factor variable

- David Speed
- POPARMS: Stata module for potential outcome parameter estimation

- Matias Cattaneo, David Drukker and Ashley Holland
- POPSIM: Stata module to simulate completed fertility and birth intervals for two generations

- Stephen Cranney
- POSTRCSPLINE: Stata module containing post-estimation commands for models using a restricted cubic spline

- Maarten Buis
- POSTRRI: Stata module to calculate posterior relative risks

- Nicola Orsini, Rino Bellocco and Sander Greenland
- POSW_POSIS: Stata module to implement the partialling-out estimator based on iterative sure independence screening

- David Drukker and Di Liu
- POTEST: RATS procedure to perform Phillips-Ouliaris-Hansen test for Cointegration

- Tom Doan
- POTESTRESIDS: RATS procedure to perform Phillips-Ouliaris-Hansen test for Cointegration on 1st stage residuals

- Tom Doan
- POVCALNET: Stata module to access World Bank Global Poverty and Inequality measures

- Andrés Castañeda, Christoph Lakner, Espen Prydz, Jorge Soler Lopez, Ruoxuan Wu and Qinghua Zhao
- POVDECO: Stata module to calculate poverty indices with decomposition by subgroup

- Stephen Jenkins
- POVERTY: Stata module to calculate poverty measures

- Philippe Van Kerm
- POVGUIDE2: Stata module to compute Federal Poverty Guidelines by family size and year, 1973-2025

- Reginald Hebert
- POVGUIDE: Stata module to generate the U.S. Poverty Guideline value for a given family size and year

- David Kantor
- POVIMP: Stata module to provide poverty estimates in the absence of actual consumption data

- Hai-Anh Dang and Minh Nguyen
- POVTIME: Stata module to compute aggregate intertemporal poverty measures (poverty in a panel accounting for time)

- Carlos Gradín
- POWER_CONCORD: Stata module to compute power and sample size for Lin's concordance correlation coefficient

- Ariel Linden and Lawrence Lin
- POWER_DIAGNOSTIC: Stata module to compute power and sample size for sensitivity and specificity of a diagnostic test

- Ariel Linden
- POWER_ICC: Stata module to compute power and sample size for one-way random-effects intraclass correlation

- Ariel Linden
- POWER_ITSA: Stata module to compute power for single and multiple-group interrupted time series analysis

- Ariel Linden
- POWER_KAPPA: Stata module to compute power and sample size for the two-rater kappa statistic with two or more categories

- Ariel Linden
- POWER_LOA: Stata module to compute power and sample size for limits of agreement (LOA) analysis

- Ariel Linden
- POWER_ONEROC: Stata module to compute power and sample size for a one-sample ROC test

- Ariel Linden
- POWER_ROC: Stata module to compute power and sample-size analysis for receiver operating characteristic (ROC) analysis

- Ariel Linden
- POWER_STEP: Stata module to compute power for a step intervention with AR(1) Error

- Ariel Linden
- POWER_SWGEE: Stata module to compute power (under both a Z and t distribution) for cluster randomized stepped wedge designs

- John A. Gallis, Xueqi Wang, Paul J. Rathouz, John S. Preisser, Fan Li and Elizabeth L. Turner
- POWER_TWORATES_ZHU: Stata module to calculate sample size or power for a two-sample test of rates

- Mark Chatfield
- POWER_TWOROC: Stata module to compute power and sample size for a two-sample (independent or paired) ROC test

- Ariel Linden
- POWERCAL: Stata module to perform general power and sample size calculations

- Roger Newson
- POWERCLUS: Stata module to calculate sample size and/or cluster size for cluster designed studies

- Joanne M. Garrett
- POWERMAP: Stata module to create power heat maps for experimental design using multiple periods

- Cristhian Pulido
- POWERQ: Stata module to calculates posterior probabilities for heterogeneity in a meta-analysis

- Nikolaos Patsopoulos and Tiago V Pereira
- POWERSIM: Stata module for simulation-based power analysis for linear and generalized linear models

- Joerg Luedicke
- PPML: Stata module to perform Poisson pseudo-maximum likelihood estimation

- João Santos Silva and Silvana Tenreyro
- PPML_FE_BIAS: Stata module to provide bias corrections for Poisson Pseudo-Maximum Likelihood (PPML) gravity models with two-way and three-way fixed effects

- Thomas Zylkin
- PPML_PANEL_SG: Stata module to estimate "structural gravity" models via Poisson PML

- Thomas Zylkin
- PPMLHDFE: Stata module for Poisson pseudo-likelihood regression with multiple levels of fixed effects

- Sergio Correia, Paulo Guimaraes and Thomas Zylkin
- PPPLOT: Stata module for P-P plots

- Nicholas Cox
- PPROB: Stata Program to compute poisson probabilities

- Philip B. Ender
- PPSCHROMY: Stata module to draw sample with probability proportionate to size, using Chromy's method of sequential random sampling

- Jonathan Mendelson
- PPSSAMPFORD: Stata module to draw sample with probability proportionate to size, without replacement, using Sampford's method

- Jonathan Mendelson
- PPUNIT: RATS procedure to perform Phillips-Perron Unit Root test

- Tom Doan
- PQ: Stata module to read, write, and manage Parquet files in Stata

- Jonathan Rothbaum
- PRE: Stata module to calculate the proportional reduction in errors accomplished by an estimated model

- Paul Millar