| addColumns | Add columns to existing data set |
| addCorData | Add correlated data to existing data.table |
| addPeriods | Create longitudinal/panel data |
| defData | Add single row to definitions table |
| defDataAdd | Add single row to definitions table that will be used to add data to an existing data.table |
| defMiss | Add single row to definitions table for missing data |
| defRead | Read external csv data set definitions |
| defReadAdd | Read external csv data set definitions for adding columns |
| defSurv | Add single row to survival definitions |
| genCluster | Simulate data set that is one level down in a multilevel data context. The level "2" data set must contain a field that specifies the number of individual records in a particular cluster. |
| genCorData | Create correlated data |
| genData | Calling function to simulate data |
| genMiss | Generate missing data |
| genObs | Create an observed data set that includes missing data |
| genSurv | Generate missing data |
| mergeData | Merge two data tables |
| trtAssign | Assign treatment |
| trtObserve | Observed exposure or treatment |