Stata Journal Vol 18 Issue 1
Announcement of the Stata Journal Editors' Prize 2018 Power and sample-size analysis for the Royston–Parmar combined test in clinical trials with a time-to-event outcomeP. RoystonUnit-root tests based on forward and reverse Dickey–Fuller regressionsJ. Otero and C. F. Baumvalidscale: A command to validate measurement scalesB. Perrot, E. Bataille, and J.-B. HardouinA command for fitting mixture regression models for bounded dependent variables using the beta distributionL. A. Gray and M. Hernández AlavaTesting for serial correlation in fixed-effects panel modelsJ. Wurstenldagibbs: A command for topic modeling in Stata using latent Dirichlet allocationC. SchwarzExploring marginal treatment effects: Flexible estimation using StataM. E. AndresenFitting and interpreting correlated random-coefficient models using StataO. Barriga Cabanillas, J. D. Michler, A. Michuda, and E. Tjernströmheckroccurve: ROC curves for selected samplesJ. A. Cook and A. RajbhandariPanel unit-root tests for heteroskedastic panelsH. Herwartz, S. Maxand, F. H. C. Raters, and Y. M. WalleSome commands to help produce Rich Text Files from StataM. S. GillmanStandard-error correction in two-stage optimization models: A quasi–maximum likelihood estimation approachF. Rios-Avila and G. Canavire-BacarrezaAssessing the health economic agreement of different data sourcesD. Gallacher and F. AchanaManipulation testing based on density discontinuityM. D. Cattaneo, M. Jansson and X. MaSpeaking Stata: Logarithmic binning and labelingN. J. CoxStata tip 129: Efficiently processing textual data with Stata's new Unicode featuresA. KoplenigSoftware Updates