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Install
install.packages('data.table')
Monthly Downloads
999,142
Version
1.10.0
License
GPL-3 | file LICENSE
Maintainer
Matt Dowle
Last Published
December 3rd, 2016
Functions in data.table (1.10.0)
Search all functions
dcast.data.table
Fast dcast for data.table
address
Address in RAM of a variable
rbindlist
Makes one data.table from a list of many
rleid
Generate run-length type group id
fread
Fast and friendly file finagler
all.equal
Equality Test Between Two Data Tables
J
Creates a Join data table
IDateTime
Integer based date class
frank
Fast rank
as.data.table.xts
Efficient xts to as.data.table conversion
print.data.table
data.table Printing Options
patterns
Obtain matching indices corresponding to patterns
as.data.table
Coerce to data.table
timetaken
Pretty print of time taken
transform.data.table
Data table utilities
setcolorder
Fast column reordering of a data.table by reference
setDF
Coerce a data.table to data.frame by reference
tstrsplit
strsplit and transpose the resulting list efficiently
tables
Display all objects of class 'data.table'
between
Convenience functions for range subsets.
chmatch
Faster match of character vectors
test.data.table
Runs a set of tests.
as.xts.data.table
Efficient data.table to xts conversion
:=
Assignment by reference
fsort
Fast parallel sort
setDT
Coerce lists and data.frames to data.table by reference
fwrite
Fast CSV writer
setkey
Create key on a data table
shouldPrint
For use by packages that mimic/divert auto printing e.g. IRkernel and knitr
last
Last item of an object
copy
Copy an entire object
duplicated
Determine Duplicate Rows
first
First item of an object
data.table-class
S4 Definition for data.table
like
Convenience function for calling regexpr.
foverlaps
Fast overlap joins
rowid
Generate unique row ids within each group
merge
Merge two data.tables
setattr
Set attributes of objects by reference
melt.data.table
Fast melt for data.table
setorder
Fast row reordering of a data.table by reference
setNumericRounding
Change or turn off numeric rounding
na.omit.data.table
Remove rows with missing values on columns specified
setDTthreads
Set or get number of threads that data.table should use
setops
Set operations for data tables
special-symbols
Special symbols
transpose
Efficient transpose of list
truelength
Over-allocation access
data.table-package
Enhanced data.frame
datatable.optimize
Optimisations in data.table
subset.data.table
Subsetting data.tables
split
Split data.table into chunks in a list
shift
Fast lead/lag for vectors and lists