*! xtoutliers 1.0.0 18jul2026 *! Overview / launcher for the xtoutliers suite of panel-data outlier tools. *! Commands: xtvsom (variance-shift outlier model, postestimation) *! xtrobust (S-estimator & WLE robust FE/RE estimation) *! xtlossf (distribution-free loss-function detector) *! Author: Dr Merwan Roudane (merwanroudane920@gmail.com) *! GitHub: https://github.com/merwanroudane program define xtoutliers version 14.0 di as text "" di as text "{hline 70}" di as text " xtoutliers 1.0.0 — outlier detection & robust estimation for panels" di as text "{hline 70}" di as text " Three complementary approaches to panel-data outliers:" di as text "" di as text " {cmd:xtvsom} " as text "Variance Shift Outlier Model (VSOM). Detects and" di as text " accommodates outliers by shifting their variance." di as text " Runs as postestimation after xtreg,fe / regress /" di as text " ivregress 2sls. {help xtvsom:help xtvsom}" di as text "" di as text " {cmd:xtrobust} " as text "Robust FE/RE estimation with the S-estimator and the" di as text " Weighted Likelihood Estimator (WLE)." di as text " {help xtrobust:help xtrobust}" di as text "" di as text " {cmd:xtlossf} " as text "Distribution-free loss-function outlier detection" di as text " (nonnegative & mixed-sign data)." di as text " {help xtlossf:help xtlossf}" di as text "" di as text " Methods help: {help xtoutliers_methods:help xtoutliers methods}" di as text "{hline 70}" di as text " Dr Merwan Roudane — github.com/merwanroudane" di as text "{hline 70}" end