:=                      Assignment by reference
IDateTime               Integer based date class
J                       Creates a Join data table
address                 Address in RAM of a variable
all.equal               Equality Test Between Two Data Tables
between                 Convenience function for range subset logic.
chmatch                 Faster match of character vectors
data.table-class        S4 Definition for data.table
data.table-package      Enhanced data.frame
dcast.data.table        Fast dcast for data.table
duplicated              Determine Duplicate Rows
fread                   Fast and friendly file finagler
last                    Last item of an object
like                    Convenience function for calling regexpr.
melt.data.table         Fast melt for data.table
merge                   Merge Two Data Tables
rbindlist               Makes one data.table from a list of many
setkey                  Create key on a data table
subset.data.table       Subsetting data.tables
tables                  Display all objects of class 'data.table'
test.data.table         Runs a set of tests.
timetaken               Pretty print of time taken
transform.data.table    Data table utilities
truelength              Over-allocation access
