| add.backtick | Add backtick |
| dt.calculate | dt.calculate |
| dt.choose.cols | dt.choose.cols |
| dt.choose.rows | dt.choose.rows |
| dt.count.rows | dt.count.rows |
| dt.define.variable | dt.define.variable |
| dt.first.k.rows | dt.first.k.rows |
| dt.last.k.rows | dt.last.k.rows |
| dt.remove.variables | dt.remove.variables |
| dt.sort | dt.sort |
| reduce.vector.expression | Takes a numeric vector and produces a statement with a more compact representation. For instance, c(1,2,3,4) would become '1:4' and c(1:3, 4:6) could become '1:6'. |