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Install
install.packages('data.table')
Monthly Downloads
999,142
Version
1.10.4-2
License
GPL-3 | file LICENSE
Maintainer
Matt Dowle
Last Published
October 12th, 2017
Functions in data.table (1.10.4-2)
Search all functions
as.data.table
Coerce to data.table
as.data.table.xts
Efficient xts to as.data.table conversion
between
Convenience functions for range subsets.
chmatch
Faster match of character vectors
address
Address in RAM of a variable
all.equal
Equality Test Between Two Data Tables
IDateTime
Integer based date class
J
Creates a Join data table
as.xts.data.table
Efficient data.table to xts conversion
:=
Assignment by reference
dcast.data.table
Fast dcast for data.table
copy
Copy an entire object
first
First item of an object
foverlaps
Fast overlap joins
fsort
Fast parallel sort
fwrite
Fast CSV writer
data.table-package
Enhanced data.frame
datatable.optimize
Optimisations in data.table
patterns
Obtain matching indices corresponding to patterns
print.data.table
data.table Printing Options
setattr
Set attributes of objects by reference
data.table-class
S4 Definition for data.table
last
Last item of an object
like
Convenience function for calling regexpr.
setDT
Coerce lists and data.frames to data.table by reference
setcolorder
Fast column reordering of a data.table by reference
split
Split data.table into chunks in a list
subset.data.table
Subsetting data.tables
transpose
Efficient transpose of list
truelength
Over-allocation access
duplicated
Determine Duplicate Rows
na.omit.data.table
Remove rows with missing values on columns specified
setDTthreads
Set or get number of threads that data.table should use
setkey
Create key on a data table
setops
Set operations for data tables
frank
Fast rank
fread
Fast and friendly file finagler
melt.data.table
Fast melt for data.table
setNumericRounding
Change or turn off numeric rounding
tables
Display all objects of class 'data.table'
test.data.table
Runs a set of tests.
rbindlist
Makes one data.table from a list of many
rleid
Generate run-length type group id
timetaken
Pretty print of time taken
transform.data.table
Data table utilities
merge
Merge two data.tables
rowid
Generate unique row ids within each group
setDF
Coerce a data.table to data.frame by reference
setorder
Fast row reordering of a data.table by reference
shift
Fast lead/lag for vectors and lists
tstrsplit
strsplit and transpose the resulting list efficiently
shouldPrint
For use by packages that mimic/divert auto printing e.g. IRkernel and knitr
special-symbols
Special symbols