data.table

Integer based date class

Creates a join data.table

Address in RAM of a variable

Equality Test Between Two Data Tables

Coerce to data.table

Efficient xts to as.data.table conversion

Convert a data.table to a matrix

Efficient data.table to xts conversion

Assignment by reference

Convenience functions for range subsets.

data.table exported C routines

Faster match of character vectors

Coalescing missing values

Copy an entire object

Enhanced data.frame

S4 Definition for data.table

Optimisations in data.table

Fast dcast for data.table

Deprecated.

Determine Duplicate Rows

fcase

Fast ifelse

Fast overlap joins

Fast rank

Fast and friendly file finagler

Rolling functions

Fast parallel sort

Fast CSV writer

Grouping Set aggregation for data tables

First/last item of an object

Number of rows affected by last update

Convenience function for calling grep.

Fast melt for data.table

Merge two data.tables

Remove rows with missing values on columns specified

Fill missing values

Set or get number of threads that data.table should use

Obtain matching indices corresponding to patterns

data.table Printing Options

Makes one data.table from a list of many

Generate run-length type group id

Generate unique row ids within each group

Coerce a data.table to data.frame by reference

Coerce lists and data.frames to data.table by reference

Change or turn off numeric rounding

Set attributes of objects by reference

Fast column reordering of a data.table by reference

Create key on a data.table

Set operations for data tables

Fast row reordering of a data.table by reference

Fast lead/lag for vectors and lists

For use by packages that mimic/divert auto printing e.g. IRkernel and knitr

Special symbols

Split data.table into chunks in a list

Subsetting data.tables

Display 'data.table' metadata

Test assertions for equality, exceptions and console output

Runs a set of tests.

Pretty print of time taken

Data table utilities

Efficient transpose of list

Over-allocation access

strsplit and transpose the resulting list efficiently

Perform update of development version of a package