iiinova — where your digital self keeps evolving

Timbul Widodo, S.TP @timbulwidodostp.bsky.social · 12h

Generalized Linear Models Multivariate Abundance Data Use manyglm With R Software ln.run/mglm Conley standard errors in OLS and 2SLS Use spatial_reg With STATA 19 ristek.link/rg #rstudio #rsoftware #softwarer #stata #stata19 #olahdatasemarang #programming

000

Timbul Widodo, S.TP @timbulwidodostp.bsky.social · 08/10/2026

Standard Errors adjusted degrees freedom dfadjustSE (dfadjust) R Software s.id/dfjst Many IV regressions (OLS, TSLS, LIML, MBTSLS, JIVE, UJIVE) manyiv STATA 19 ln.run/mnyv #rstudio #rsoftware #softwarer #stata #stata19 #olahdatasemarang #programming

000

Timbul Widodo, S.TP @timbulwidodostp.bsky.social · 07/10/2026

Inference prediction regression categorical covariate interaction lmabc R Software ln.run/lmbc Fitting a Fisk distribution ML unit record data Use fiskfit With STATA 19 ristek.link/ft #rstudio #rsoftware #softwarer #stata #stata19 #olahdatasemarang #programming

010

Timbul Widodo, S.TP @timbulwidodostp.bsky.social · 06/10/2026

Linear ridge regression Use linearRidge (ridge) With R Software s.id/lrrge Testing hypothesis about signs of 2SLS weights Use mivcausal With STATA 19 ln.run/mvcl #rstudio #rsoftware #softwarer #stata #stata19 #olahdatasemarang #programming

000

Timbul Widodo, S.TP @timbulwidodostp.bsky.social · 05/10/2026

Exploratory Factor Analysis Model Implied Instrumental miivefa R Software ln.run/mvfa Tests overidentifying restrictions after xtreg xtivreg use xtoverid STATA 19 ristek.link/xv #rstudio #rsoftware #softwarer #stata #stata19 #olahdatasemarang #programming

000

Timbul Widodo, S.TP @timbulwidodostp.bsky.social · 03/10/2026

Raise Regression Use raiseReg (raiseR) With R Software ln.run/rais Decomposes total effects logistic regression direct & indirect effects ldecomp STATA 19 ristek.link/ld #rstudio #rsoftware #softwarer #stata #stata19 #olahdatasemarang #programming

000

Timbul Widodo, S.TP @timbulwidodostp.bsky.social · 02/10/2026

Bivariate COM Poisson Parameter Estimation Use multicmpests With R Software s.id/cmpts Fit generalized linear model & test two way interactions Use fitint With STATA 19 ln.run/fint #rstudio #rsoftware #softwarer #stata #stata19 #olahdatasemarang #programming

010

Timbul Widodo, S.TP @timbulwidodostp.bsky.social · 01/10/2026

Causal generalized linear model Use cglm (causalreg) With R Software ln.run/cglm Quantile regression logarithmic relationships nonpositive outcome lzqreg STATA 19 ristek.link/lz #rstudio #rsoftware #softwarer #stata #stata19 #olahdatasemarang #programming

000

Timbul Widodo, S.TP @timbulwidodostp.bsky.social · 30/09/2026

Fit Rasch model Use rasch With R Software s.id/_rsch Estimation parameters Rasch model tests specific graphs raschtest & raschtestv7 STATA 19 ln.run/rsch #rstudio #rsoftware #softwarer #stata #stata19 #olahdatasemarang #programming

001

Timbul Widodo, S.TP @timbulwidodostp.bsky.social · 29/09/2026

Conditional standard error measurement Generalizability Theory csem_gt R Software ln.run/cmgt Presentation nonlinear relationships regression log logit link epresent STATA 19 ristek.link/ep #rstudio #rsoftware #softwarer #stata #stata19 #olahdatasemarang #programming

000

Timbul Widodo, S.TP @timbulwidodostp.bsky.social · 28/09/2026

Many facet ordered response models flexible number facets fit_mfrm R Software s.id/mfrmr Conditional standard errors measurement Generalizability Theory gtcsem STATA 19 ln.run/gtcm #rstudio #rsoftware #softwarer #stata #stata19 #olahdatasemarang #programming

000

Timbul Widodo, S.TP @timbulwidodostp.bsky.social · 27/09/2026

Logistic Regressions Misclassification Correction Use logistic4p With R Software ln.run/lgcp Multidimensional Marginally SufficientRasch Model Use mmsrm With STATA 19 ristek.link/mr #rstudio #rsoftware #softwarer #stata #stata19 #olahdatasemarang #programming

000

Timbul Widodo, S.TP @timbulwidodostp.bsky.social · 26/09/2026

Competing Risks Regression crr (cmprsk) R Software s.id/_crr_ Predictive value weighting covariate misclassification logistic regression pvw STATA 19 ln.run/_pvw #rstudio #rsoftware #softwarer #stata #stata19 #olahdatasemarang #programming

000

Timbul Widodo, S.TP @timbulwidodostp.bsky.social · 25/09/2026

Mixed effect parametric excess hazard models Use mexhaz With R Software ln.run/mxhz Estimating net survival Use stnet With STATA 19 ristek.link/st #rstudio #rsoftware #softwarer #stata #stata19 #olahdatasemarang #programming

000

Timbul Widodo, S.TP @timbulwidodostp.bsky.social · 24/09/2026

@nmouquet.bsky.social SEQuential trial emulation Use SEQuential (SEQTaRget) With R Software s.id/squtl Multivariate decomposition hazard rate models Use hazdcmp With STATA 19 ln.run/hzdc #rstudio #rsoftware #softwarer #stata #stata19 #olahdatasemarang #programming

011

Timbul Widodo, S.TP @timbulwidodostp.bsky.social · 23/09/2026

Doubly robust causal effect high dimension flexible Bayesian DRbayes R Software ln.run/drbs Sequential target trial emulation Use seqtte With STATA 19 ristek.link/se #rstudio #rsoftware #softwarer #stata #stata19 #olahdatasemarang #programming

010

Timbul Widodo, S.TP @timbulwidodostp.bsky.social · 22/09/2026

Regularized Finite Mixture Regression Model MM Algorithm FMRM (regMR) R Software s.id/_fmrm Robust Hausman Specification Test Use rhausman With STATA 19 ln.run/rhmn #rstudio #rsoftware #softwarer #stata #stata19 #olahdatasemarang #programming

000

Timbul Widodo, S.TP @timbulwidodostp.bsky.social · 21/09/2026

Gaussian Kernel Robust Regression (GKRReg) Use gkrr (gkrreg) With R Software ln.run/gkrr Regression Calibration Use rcal With STATA 19 ristek.link/rc #rstudio #rsoftware #softwarer #stata #stata19 #olahdatasemarang #programming

000

Timbul Widodo, S.TP @timbulwidodostp.bsky.social · 20/09/2026

The PaF income polarization index Use pafF And paf (DER) With (In) R Software s.id/_pafF Polarization index, Esteban and Ray (Econometrica, 1994) Use er With STATA 19 ln.run/_er_ #rstudio #rsoftware #softwarer #stata #stata19 #olahdatasemarang #programming

011

Timbul Widodo, S.TP @timbulwidodostp.bsky.social · 19/09/2026

Bayesian Model Averaging linear regression models Use bicreg With R Software ln.run/bcrg Measures of (Income) Bi-polarization Use bipolar With STATA 19 ristek.link/br #rstudio #rsoftware #softwarer #stata #stata19 #olahdatasemarang #programming

000

Timbul Widodo, S.TP @timbulwidodostp.bsky.social · 18/09/2026

Fit a binomial linear regression model Use blm With R Software dik.si/_blm_ Influence Analysis Linear Panel Data Fixed Effects Use xtinfluence With STATA 19 ln.run/xflu #rstudio #rsoftware #softwarer #stata #stata19 #olahdatasemarang #programming

000

Timbul Widodo, S.TP @timbulwidodostp.bsky.social · 17/09/2026

Nonparametric Multiple Comparisons relative contrast effects nparcomp R Software s.id/nparc Nonparametric Multiple Comparisons relative contrast effects nparcomp STATA 19 ln.run/nprc #rstudio #rsoftware #softwarer #stata #stata19 #olahdatasemarang #programming

000

Timbul Widodo, S.TP @timbulwidodostp.bsky.social · 16/09/2026

Detecting modeling temporal effect heterogeneity panel data dynamr R Software ln.run/dymr Han Philips (2010) Linear Dynamic Panel Data Regression xtregdhp STATA 19 ristek.link/gp #rstudio #rsoftware #softwarer #stata #stata19 #olahdatasemarang #programming

010

Timbul Widodo, S.TP @timbulwidodostp.bsky.social · 15/09/2026

Mixed tobit regression models parameters mixed effects mixedtobit Software s.id/mtbit Local polynomial conditional density estimation & inference lpcde STATA 19 ln.run/lpcd #rstudio #rsoftware #softwarer #stata #stata19 #olahdatasemarang #programming

000

Timbul Widodo, S.TP @timbulwidodostp.bsky.social · 14/09/2026

Fitting Bayesian Generalized Linear Models Use glmb (glmbayes) In R Software ln.run/glmb Estimation one part & two part fractional regression models Use frm In STATA 19 ristek.link/fr #rstudio #rsoftware #softwarer #stata #stata19 #olahdatasemarang #programming

000

Timbul Widodo, S.TP @timbulwidodostp.bsky.social · 12/09/2026

Hazard regression Use hare (polspline) With (In) R Software ln.run/hare Time series regression HAR standard errors & fixed b inference harreg STATA 19 ristek.link/hr #rstudio #rsoftware #softwarer #stata #stata19 #olahdatasemarang #programming

000

Timbul Widodo, S.TP @timbulwidodostp.bsky.social · 11/09/2026

Cramer Test uni & multivariate two sample proble cramer.test R Software s.id/crmer Regression heteroskedasticity & autocorrelation robust standard errors har STATA ln.run/_har #rstudio #rsoftware #softwarer #stata #stata19 #olahdatasemarang #programming

000

Timbul Widodo, S.TP @timbulwidodostp.bsky.social · 09/09/2026

Local efficient doubly robust DiD ATT repeated cross section drdid_rc R Software s.id/didrc Triply Robust Panel Estimators (TROP) Use trop With STATA 19 ln.run/trop #rstudio #rsoftware #softwarer #stata #stata19 #olahdatasemarang #programming

000

Timbul Widodo, S.TP @timbulwidodostp.bsky.social · 08/09/2026

Joint model time event data & multivariate longitudinal data mjoint R Software ln.run/mjnt Balance subgroups propensity score re weighting Use balancepscore1 STATA 19 ristek.link/bl #rstudio #rsoftware #softwarer #stata #stata19 #olahdatasemarang #programming

010

Timbul Widodo, S.TP @timbulwidodostp.bsky.social · 07/09/2026

Finite Mixture Modeling Raw Data & Binned Data Use mixfit (mixR) In R Software s.id/mxfit Multi-model inference using information criteria (MIINC) Use miinc With STATA 19 ln.run/minc #rstudio #rsoftware #softwarer #stata #stata19 #olahdatasemarang #programming

000

Timbul Widodo, S.TP @timbulwidodostp.bsky.social · 04/09/2026

Rank Correlation for Censored Data Use rcorr.cens (Hmisc) With (In) R Software ln.run/rcor Rank statistics for scenario comparisons Use scsomersd With STATA 19 ristek.link/sr #rstudio #rsoftware #softwarer #stata #stata19 #olahdatasemarang #programming

000

Timbul Widodo, S.TP @timbulwidodostp.bsky.social · 03/09/2026

Predictor Selection Function Logistic Cox regression multiply imputed psfmi_lr R s.id/psfmi Tests significance of a predictor in logistic models Use logtest With STATA 19 ln.run/lgte #rstudio #rsoftware #softwarer #stata #stata19 #olahdatasemarang #programming

000

Timbul Widodo, S.TP @timbulwidodostp.bsky.social · 02/09/2026

Robust Fitting of Multivariate Linear Models Use robmlm (heplots) R Software ln.run/rbml Pagan Hall & related heteroskedasticity tests after IV & OLS ivhettest STATA 19 ristek.link/iv #rstudio #rsoftware #softwarer #stata #stata19 #olahdatasemarang #programming

000

Timbul Widodo, S.TP @timbulwidodostp.bsky.social · 01/09/2026

Model by AIC in a Stepwise Algorithm Use step With (In) R Software s.id/step_ Optimal MHT adjustment after any estimation command Use mht_est With STATA 19 ln.run/mhts #rstudio #rsoftware #softwarer #stata #stata19 #olahdatasemarang #programming

000

Timbul Widodo, S.TP @timbulwidodostp.bsky.social · 31/08/2026

Dynamic Programming Based Gaussian Mixture Model (GMM) runGMM (dpGMM) R Software ln.run/rgmm Specification tests after dynamic panel data GMM estimation Use xtdyntest With STATA 19 ristek.link/xy #rstudio #rsoftware #softwarer #stata #stata19 #olahdatasemarang #programming

000

Timbul Widodo, S.TP @timbulwidodostp.bsky.social · 30/08/2026

Free step down adjusted p value algorithm Westfall Young boot_stepdown R Software s.id/btstp Subpopulation treatment effect pattern plot (STEPP) analysis stepp STATA 19 ln.run/sepp #rstudio #rsoftware #softwarer #stata #stata19 #olahdatasemarang #programming

000

Timbul Widodo, S.TP @timbulwidodostp.bsky.social · 22/08/2026

Estimate interaction effects structural equation models (SEMs) modsem R Software ln.run/mods Squared multiple correlation Use sqmc With STATA 19 ristek.link/qm #rstudio #rsoftware #softwarer #stata #stata19 #olahdatasemarang #programming

000

Timbul Widodo, S.TP @timbulwidodostp.bsky.social · 21/08/2026

Causal Mediation Diagnostics & Sensitivity Analysis robustmediate R Software s.id/robmd Causal mediation analysis linear instrumental variable model ivmediate STATA 19 ln.run/ivme #rstudio #rsoftware #softwarer #stata #stata19 #olahdatasemarang #programming

000

Timbul Widodo, S.TP @timbulwidodostp.bsky.social · 20/08/2026

Perform the Model Confidence Set procedure Hansen et.al. (2011) MCS R Software ln.run/_mcs Jochmans (2019) test serial correlation panel-data models xtserialpm STATA 19 ristek.link/pm #rstudio #rsoftware #softwarer #stata #stata19 #olahdatasemarang #programming

000

Timbul Widodo, S.TP @timbulwidodostp.bsky.social · 19/08/2026

Dyadic data analysis Use dyadr With (In) R Software s.id/dyadr The Model Confidence Set (MCS) Use mcset With STATA 19 ln.run/mcst #rstudio #rsoftware #softwarer #stata #stata19 #olahdatasemarang #programming

000

Timbul Widodo, S.TP @timbulwidodostp.bsky.social · 18/08/2026

Multivariate Analysis of Variance (MANOVA) based distances PERMANOVA R Software ln.run/prmn Interrater agreement Use kappaetc With STATA 19 ristek.link/kc #rstudio #rsoftware #softwarer #stata #stata19 #olahdatasemarang #programming

010

Timbul Widodo, S.TP @timbulwidodostp.bsky.social · 17/08/2026

Calculate Krippendorff's alpha reliability coefficient kripp.alpha R Software s.id/kripp Krippendorff's alpha for nominal variables Use kanom With STATA 19 ln.run/knom #rstudio #rsoftware #softwarer #stata #stata19 #olahdatasemarang #programming

000

Timbul Widodo, S.TP @timbulwidodostp.bsky.social · 16/08/2026

Confidence interval Krippendorff's Alpha Use krippendorffs.alpha In R Software ln.run/krph Pearson's r Effect Size Computation for ANOVA Use reffect With STATA 19 ristek.link/rf #rstudio #rsoftware #softwarer #stata #stata19 #olahdatasemarang #programming

000

Timbul Widodo, S.TP @timbulwidodostp.bsky.social · 15/08/2026

Estimate Interactive Fixed Effects Model (Bai 2009) Use ife (xtife) R Software s.id/_ife_ Fixed effects estimation sample selection correction Use xtselfe With STATA 19 ln.run/xtfe #rstudio #rsoftware #softwarer #stata #stata19 #olahdatasemarang #programming

000

Timbul Widodo, S.TP @timbulwidodostp.bsky.social · 14/08/2026

Fit lasso penalized regression path for big data Use biglasso R Software ln.run/bigl Identify latent group structures Classifier Lasso Use classifylasso STATA 19 ristek.link/cf #rstudio #rsoftware #softwarer #stata #stata19 #olahdatasemarang #programming

000

Timbul Widodo, S.TP @timbulwidodostp.bsky.social · 13/08/2026

Multi-class classification ROC Analysis Use multi_roc (multiROC) R Software s.id/mltrc Multiclass ROC Curves & AUC Multinomial Logistic Regression mlogitroc STATA 19 ln.run/troc #rstudio #rsoftware #softwarer #stata #stata19 #olahdatasemarang #programming

000

Timbul Widodo, S.TP @timbulwidodostp.bsky.social · 12/08/2026

Non-parametric stochastic frontier Use fit.sf (snfa) With (In) R Software ln.run/snfa Meta-analysis with missing data Use metamiss With STATA 19 ristek.link/mt #rstudio #rsoftware #softwarer #stata #stata19 #olahdatasemarang #programming

000

Timbul Widodo, S.TP @timbulwidodostp.bsky.social · 11/08/2026

Fit cosinor model with glmmTMB Use cglmm With (In) R Software dik.si/gltmb Comprehensive marginal effects regression slope coefficients coefconv STATA 19 ln.run/conv #rstudio #rsoftware #softwarer #stata #stata19 #olahdatasemarang #programming

000

Timbul Widodo, S.TP @timbulwidodostp.bsky.social · 10/08/2026

Quantile Autoregressive Distributed Lag Unit Root Test Use qadf R Software ln.run/qadf Quantile Autoregressive Distributed Lag Unit Root Test Use qadf STATA 19 ristek.link/qf #rstudio #rsoftware #softwarer #stata #stata19 #olahdatasemarang #programming

010

Timbul Widodo, S.TP @timbulwidodostp.bsky.social · 08/08/2026

Fit Joint Mean-Covariance Models Use jmcm With (In) R Software dik.si/_jmcm Sliced mean variance-covariance inverse regression Use smvcir With STATA 19 ln.run/smvr #rstudio #rsoftware #softwarer #stata #stata19 #olahdatasemarang #programming

000