| align | Align a 'data.table' onto a 'nanotime' vector |
| align-method | Align a 'data.table' onto a 'nanotime' vector |
| align.idx | Get the index of the alignment of one vector onto another |
| align.idx-method | Get the index of the alignment of one vector onto another |
| frequency-method | Return the number of observations per interval |
| grid.align | Align a 'data.table' onto a 'nanotime' vector grid |
| grid.align-method | Align a 'data.table' onto a 'nanotime' vector grid |