| btsdemo | Randomly Generated Panel Dataset | 
| computeBalance | Compute Balances from a Item Shares | 
| computeShares | Compute Weighted Shares By Group | 
| computeWeightedMeans | Compute Weighted Mean by Group | 
| doUniqueCJ | Performs a Cross Join of Unique combinations | 
| extractTimeSeries | Extract a Time Series from a Data.table | 
| joinDataTables | Joins two data.tables based on keys |