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p s2s module to provide survey to survey imputation tool
p sadi Sequence analysis distance measures
p samregc module to perform Sensitivity Analysis of Main Regression Coefficients
p sankey module for Sankey diagrams 
p scatterfit module to produce scatter plots with fit lines
p sccsdta module to generate a dataset for the self-controlled case series method (SCCS)
p scheme_scientific module to provide a graphic scheme favored by many scientific journals
p schemepack module providing ready-to-use graph schemes
p scores module to creates scores (row-wise) of a set of variables allowing the specification of the number of valid values required and/or to produce various transformations of scores
p sdid module to perform synthetic difference-in-differences estimation, inference, and visualization
p sdid_event module providing Synthetic Difference-in-Differences (SDID) event-study estimators
p sequences module for generating versatile numeric sequences
p setroot module to find the root path of a project and set it as a global variable
p shuffle module to shuffle a list
p sicff module to create Fama French Industry Variable from SIC Code
p side_histogram module to plot side by side histograms 
p simsum module to perform analyses of simulation studies including Monte Carlo error
p simufe module to simulate panel data with fixed effects and generate scatter plots with optional fitting lines
p simulate2 module enhancing and parallelising simulate
p sivqr module to perform smoothed IV quantile regression
p sj1 module providing Enhanced Stata Journal Navigator 
p skewreg module to estimate skewness and kurtosis regressions
p smcl2do module to convert log files to do-files in a robust fashion
p socstrat module to compute and analyze social stratification variables
p soepuse module providing easy SOEP access
p sortl module to sort factor loadings or rotated matrix from PCA or factor
p sotable module to produce tests and confidence bands for multiple comparisons of two-sided or one-sided hypotheses
p spgen module to generate spatially lagged variables
p sphdist module to compute spherical distances
p spider module for spider plots
p splinefit module for smooth connected line plots
p splitit module to split chronological overlapping spells in spell data
p spsfe module for estimation of spatial stochastic frontier models
p sq module for sequence analysis
p stackdid module to estimate Stacked Difference-in-Differences Regression
p stackedev module to implement stacked event study estimator
p staggered module implementing R staggered package based on Roth and Sant'Anna (2023)
p standsurv module to compute standardized (marginal) survival and related functions
p stata_linter module providing a tool to detect and correct bad Stata coding practices
p stata_sage module to answer your research questions
p statacmds module to produce list of all commands known to Stata, including fuctions and built-ins
p stckar module to draw stacked area graphs
p step3 module to relate latent class membership to external variables
p stfform module to provide Functional form test for Cox Models
p stocdom module to compute bounds assuming stochastic dominance
p stpm3 module to fit flexible parametric survival models
p stpp module to compute Pohar-Perme non-parametric estimate of marginal relative (net) survival
p strbee module to estimate a treatment effect adjusting for treatment switches
p streamplot module to produce streamplots
p stripplot module for strip plots (one-way dot plots) 
p stute_test module to compute Stute (1997) linearity test
p styletextab module to style LaTeX tables exported by collect suite of commands
p submatrix module to perform advanced matrix subscripting
p sumdocx module to generate comprehensive summary statistics and comparison tables
p summclust module to compute cluster level measures of leverage, influence, and a cluster jackknife variance estimator
p summtab module to compute summary statistics overall and/or across levels of a categorical variable 
p sunburst module for (half) sunburst plots
p surveyspan module to analyze timestamp metadata from field surveys to monitor data quality.
p susoapi module to provide Survey Solutions API client class for Stata
p svr module to compute estimates with survey replication (SVR) based standard errors
p svycanon module to assess the statistical significance of the canonical correlations incorporating complex survey design factors
p swpermute module to compute Permutation tests for Stepped-Wedge Cluster-Randomised Trials
p symbionet module to build a symbiotic (or symmetric) correlation network from a list of variables
p synth2 module to implement synthetic control method (SCM) with placebo tests, robustness test and visualization