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Install
install.packages('data.table')
Monthly Downloads
1,453,211
Version
1.10.4-3
License
GPL-3 | file LICENSE
Maintainer
Matt Dowle
Last Published
October 27th, 2017
Functions in data.table (1.10.4-3)
Search all functions
melt.data.table
Fast melt for data.table
fsort
Fast parallel sort
patterns
Obtain matching indices corresponding to patterns
print.data.table
data.table Printing Options
setDF
Coerce a data.table to data.frame by reference
test.data.table
Runs a set of tests.
transpose
Efficient transpose of list
rowid
Generate unique row ids within each group
tables
Display all objects of class 'data.table'
truelength
Over-allocation access
setattr
Set attributes of objects by reference
shift
Fast lead/lag for vectors and lists
setorder
Fast row reordering of a data.table by reference
setcolorder
Fast column reordering of a data.table by reference
datatable.optimize
Optimisations in data.table
split
Split data.table into chunks in a list
merge
Merge two data.tables
fwrite
Fast CSV writer
setkey
Create key on a data table
setops
Set operations for data tables
na.omit.data.table
Remove rows with missing values on columns specified
subset.data.table
Subsetting data.tables
setDTthreads
Set or get number of threads that data.table should use
last
Last item of an object
like
Convenience function for calling regexpr.
rbindlist
Makes one data.table from a list of many
rleid
Generate run-length type group id
transform.data.table
Data table utilities
timetaken
Pretty print of time taken
setDT
Coerce lists and data.frames to data.table by reference
shouldPrint
For use by packages that mimic/divert auto printing e.g. IRkernel and knitr
setNumericRounding
Change or turn off numeric rounding
tstrsplit
strsplit and transpose the resulting list efficiently
special-symbols
Special symbols
as.data.table.xts
Efficient xts to as.data.table conversion
as.xts.data.table
Efficient data.table to xts conversion
all.equal
Equality Test Between Two Data Tables
address
Address in RAM of a variable
chmatch
Faster match of character vectors
as.data.table
Coerce to data.table
between
Convenience functions for range subsets.
J
Creates a Join data table
IDateTime
Integer based date class
:=
Assignment by reference
copy
Copy an entire object
frank
Fast rank
data.table-class
S4 Definition for data.table
first
First item of an object
dcast.data.table
Fast dcast for data.table
foverlaps
Fast overlap joins
duplicated
Determine Duplicate Rows
data.table-package
Enhanced data.frame
fread
Fast and friendly file finagler