Confidence Intervals for Proportions and Related Parameters (RMD) Confidence Intervals for Proportions and Related Parameters (PDF) Poisson Models (RMD) Poisson Models (PDF) Pearson's Chi Square Test of Independence (RMD) Pearson's Chi Square Test of Independence (PDF) Negative Binomial Models (RMD) Negative Binomial Models (PDF) Breslow-Day and Cochran-Mantel-Haensel Tests (RMD) Breslow-Day and Cochran-Mantel-Haensel Tests (PDF) Loglinear Models for Contingency Tables (RMD) Loglinear Models for Contingency Tables (PDF) Pearson's Chi Square Test for Goodness of Fit (RMD) Pearson's Chi Square Test for Goodness of Fit (PDF) Data for Poisson Models and Negative Binomial Models (RMD) Categorical Data Analysis: R Files