Elementary Epidemiological Functions for Epidemiology and Biostatistics
Correlation of Two Vectors
Mean Difference Detetion Tool
Epidemiological 2x2 Contingency Table Analysis Tool
Computation of the Kappa Statistic for Agreement Between Two Raters
Epidemiological T-Test Function
Pair-Matched Analysis Tool
Number of Subjects Required for a Randomized Trial with a Continuous O...
Number of Subjects Required for a Randomized Trial with Binary Outcome...
Sensitivity and Specificity Analysis of a 2x2 Matrix
Univariate Analysis of a Single Variable
Contains elementary tools for analysis of common epidemiological problems, ranging from sample size estimation, through 2x2 contingency table analysis and basic measures of agreement (kappa, sensitivity/specificity). Appropriate print and summary statements are also written to facilitate interpretation wherever possible. Source code is commented throughout to facilitate modification. The target audience includes advanced undergraduate and graduate students in epidemiology or biostatistics courses, and clinical researchers.