| n4incidence | Number of Subjects Required for a Cluster Randomized Trial Comparing Incidence Rates | 
| n4means | Number of Subjects Required for a Cluster Randomized Trial with a Continuous Outcome | 
| n4meansEB | Number of Subjects Required for a Cluster Randomized Trial with a Continuous Outcome Using Empirical Smoothing | 
| n4meansMeta | Empirical Power and Variance Reduction for an Updated Fixed Effects Meta-Analysis in Cluster Randomized Trials | 
| n4props | Number of Subjects Required for a Cluster Randomized Trial with a Binary Outcome | 
| n4propsEB | Number of Subjects Required for a Cluster Randomized Trial with Binary Outcomes Using Empirical Smoothing | 
| n4propsMeta | Empirical Power and Variance Reduction of an Updated Fixed Effects Meta-Analysis with Binary Outcomes | 
| print.n4incidence | Number of Subjects Required for a Cluster Randomized Trial Comparing Incidence Rates | 
| print.n4means | Number of Subjects Required for a Cluster Randomized Trial with a Continuous Outcome | 
| print.n4meansEB | Number of Subjects Required for a Cluster Randomized Trial with a Continuous Outcome Using Empirical Smoothing | 
| print.n4meansMeta | Empirical Power and Variance Reduction for an Updated Fixed Effects Meta-Analysis in Cluster Randomized Trials | 
| print.n4props | Number of Subjects Required for a Cluster Randomized Trial with a Binary Outcome | 
| print.n4propsEB | Number of Subjects Required for a Cluster Randomized Trial with Binary Outcomes Using Empirical Smoothing | 
| print.n4propsMeta | Empirical Power and Variance Reduction of an Updated Fixed Effects Meta-Analysis with Binary Outcomes | 
| summary.n4incidence | Number of Subjects Required for a Cluster Randomized Trial Comparing Incidence Rates | 
| summary.n4means | Number of Subjects Required for a Cluster Randomized Trial with a Continuous Outcome | 
| summary.n4meansEB | Number of Subjects Required for a Cluster Randomized Trial with a Continuous Outcome Using Empirical Smoothing | 
| summary.n4meansMeta | Empirical Power and Variance Reduction for an Updated Fixed Effects Meta-Analysis in Cluster Randomized Trials | 
| summary.n4props | Number of Subjects Required for a Cluster Randomized Trial with a Binary Outcome | 
| summary.n4propsEB | Number of Subjects Required for a Cluster Randomized Trial with Binary Outcomes Using Empirical Smoothing | 
| summary.n4propsMeta | Empirical Power and Variance Reduction of an Updated Fixed Effects Meta-Analysis with Binary Outcomes |