Like a data.frame but i and j may be expressions evaluated within the frame. i is then like base::with and j like select in base::subset. When i is itself a data.table, a join is invoked similar to base::merge but uses binary search on the sorted key.
| Version: | 1.2 |
| Depends: | R (≥ 2.4.0), ref |
| Published: | 2008-09-01 |
| Author: | Matthew Dowle |
| Maintainer: | Matthew Dowle <mdowle at mdowle.plus.com> |
| License: | GPL |
| In views: | Finance, HighPerformanceComputing |
| CRAN checks: | data.table results |
| Package source: | data.table_1.2.tar.gz |
| MacOS X binary: | data.table_1.2.tgz |
| Windows binary: | data.table_1.2.zip |
| Reference manual: | data.table.pdf |
| Old sources: | data.table archive |