SelectedWorks - Zhao (Tony) Yang, Ph.D.

Selected Works of Zhao (Tony) Yang, Ph.D.

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About Zhao (Tony) Yang, Ph.D.

Applied Statistics, Biometry, Biostatistics, Categorical Data Analysis, Clinical Trials, and Statistical Methodology

Elected member, International Statistical Institute

SAS Macro: Weighted kappa statistic for clustered matched-pair ordinal data

This SAS macro calculate the weighted kappa statistic and its corresponding non-parametric variance estimator for the clustered matched-pair ordinal data.

SAS Macro: Kappa statistic for clustered matched-pair data

The SAS macro was developed to calculate the kappa statistic for the clustered matched-pair data.

Dose-response and finding in phase II clinical studies — MCP-Mod Methodologies

This presentation give an overall introduction to the MCP-Mod methodology with detailed step-by-step demonstration.

Unpublished Paper

Some notes on the proposal for capturing interaction and effect ...

The paper by Attia et al (2022) proposed a novel type of directed acyclic graph (DAG) to graphically represent interaction ...