p hadrilm module to perform Hadri panel unit root test
p haif module to compute Homoskedastic Adjustment Inflation Factors for model selection
p half module to compute homoskedastic adjustment inflation factors for model selection
p hallt-skewt module to compute skewness-adjusted bootstrap t-statistics
p hangroot module creating a hanging rootogram comparing an empirical distribution to the best fitting theoretical distribution 
p hansen2 module for Hansen's test for parameter instability 
p hapblock module to perform haplotype analysis to identify the edges of haplotype blocks
p hapipf module to perform haplotype analysis
p harmby module to harmonize values of variables within by-groups
p hausman module to compute a Hausman test statistic (version 5)
p hbar module to generate horizontal bar charts
p hbox module to draw horizontal box plots
p hcaccprox module to compute a hierchical cluster analysis with conditional measures of proximity
p hcavar module to perform Hierarchical Clusters Analysis of variables
p hcnbreg module to estimate Heterogeneous Canonical Negative Binomial Regression
p hdquantile module for Harrell-Davis estimator of quantiles
p heckprob2 module to run heckprob and svyheckprob with d2 evaluator
p hegy4 module to compute Hylleberg et al seasonal unit root test
p heterogi module to quantify heterogeneity in a meta-analysis
p hetprob module to estimate heteroskedastic probit model
p hetred module to implement heterogeneity reducing algorithms
p hgclg module to estimate geometric-complementary log log hurdle regression
p hglogit module to estimate geometric-logit hurdle regression
p himatrix module to highlight selected elements of scatterplot
p hireg module for hierarchial regression
p hist3 module to draws histograms for intervals of different size
p histbox module to generate histogram with boxplot
p historaj module to produce histogram with descriptive statistics
p histplot module to produce histogram for frequency distribution
p hlist module for horizontally listing values
p hlm module to invoke and run HLM v6 software from within Stata
p hlp2html module to translate a list of Stata help files to HTML
p hlp2pdf module to create PDF or PostScript from Stata help file
p hlp2winpdf module to convert Stata's help files into pdf in Windows environment
p hlpdir module to find location(s) of help file
p hlpedit module to edit help file in do-file editor
p hmap module to graph a heatmap
p hnbclg module to estimate negative binomial-complementary log log hurdle regression 
p hnblogit module to estimate negative binomial-logit hurdle regression
p hnbreg1 module to estimate Heterogeneous linear negative binomial regression (NB-1)
p hodgesl module to perform Hodges-Lehmann aligned rank test
p hoi module to compute Human Opportunity Index
p hotdeck module to impute missing values using the hotdeck method
p hotvalue module to generate scales with missing values conditionally imputed
p hpclg module to estimate Poisson-complementary log log hurdle regression
p hplogit module to estimate Poisson-logit hurdle regression
p hplot module to generate horizontal plots
p hprescott module to implement Hodrick-Prescott filter for timeseries data
p hshaz module to estimate discrete time (grouped data) proportional hazards models
p hsmode module to calculate half-sample modes
p hte module to perform heterogeneous treatment effect analysis
p hutchens module to calculate the Hutchens `square root' segregation index with optional decompositions by subgroup