Man pages for data.table
Extension of `data.frame`
| address | Address in RAM of a variable |
| all.equal.data.table | Equality Test Between Two Data Tables |
| as.data.table | Coerce to data.table |
| as.data.table.xts | Efficient xts to as.data.table conversion |
| as.matrix | Convert a data.table to a matrix |
| assign | Assignment by reference |
| as.xts.data.table | Efficient data.table to xts conversion |
| between | Convenience functions for range subsets. |
| cdt | data.table exported C routines |
| chmatch | Faster match of character vectors |
| coalesce | Coalescing missing values |
| copy | Copy an entire object |
| data.table | Enhanced data.frame |
| data.table-class | S4 Definition for data.table |
| datatable-optimize | Optimisations in data.table |
| dcast.data.table | Fast dcast for data.table |
| duplicated | Determine Duplicate Rows |
| fcase | fcase |
| fdroplevels | Fast droplevels |
| fifelse | Fast ifelse |
| foverlaps | Fast overlap joins |
| frank | Fast rank |
| fread | Fast and friendly file finagler |
| froll | Rolling functions |
| fsort | Fast parallel sort |
| fwrite | Fast CSV writer |
| groupingsets | Grouping Set aggregation for data tables |
| IDateTime | Integer based date class |
| J | Creates a join 'data.table' |
| last | First/last item of an object |
| last.updated | Number of rows affected by last update |
| like | Convenience function for calling grep. |
| measure | Specify measure.vars via regex or separator |
| melt.data.table | Fast melt for data.table |
| merge | Merge two data.tables |
| nafill | Fill missing values |
| na.omit.data.table | Remove rows with missing values on columns specified |
| notin | Convenience operator for checking if an example is not in a... |
| openmp-utils | Set or get number of threads that data.table should use |
| patterns | Obtain matching indices corresponding to patterns |
| print.data.table | data.table Printing Options |
| rbindlist | Makes one data.table from a list of many |
| rleid | Generate run-length type group id |
| rowid | Generate unique row ids within each group |
| rowwiseDT | Create a data.table row-wise |
| setattr | Set attributes of objects by reference |
| setcolorder | Fast column reordering of a data.table by reference |
| setDF | Coerce a data.table to data.frame by reference |
| setDT | Coerce lists and data.frames to data.table by reference |
| setkey | Create key on a data.table |
| setNumericRounding | Change or turn off numeric rounding |
| setops | Set operations for data tables |
| setorder | Fast row reordering of a data.table by reference |
| shift | Fast lead/lag for vectors and lists |
| shouldPrint | For use by packages that mimic/divert auto printing e.g.... |
| special-symbols | Special symbols |
| split | Split data.table into chunks in a list |
| subset.data.table | Subsetting data.tables |
| substitute2 | Substitute expression |
| tables | Display 'data.table' metadata |
| test | Test assertions for equality, exceptions and console output |
| test.data.table | Runs a set of tests. |
| timetaken | Pretty print of time taken |
| transform.data.table | Data table utilities |
| transpose | Efficient transpose of list |
| truelength | Over-allocation access |
| tstrsplit | strsplit and transpose the resulting list efficiently |
| update_dev_pkg | Perform update of development version of a package |
