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Install
install.packages('data.table')
Monthly Downloads
1,453,211
Version
1.10.2
License
GPL-3 | file LICENSE
Maintainer
Matt Dowle
Last Published
January 31st, 2017
Functions in data.table (1.10.2)
Search all functions
between
Convenience functions for range subsets.
:=
Assignment by reference
as.xts.data.table
Efficient data.table to xts conversion
as.data.table.xts
Efficient xts to as.data.table conversion
address
Address in RAM of a variable
data.table-class
S4 Definition for data.table
chmatch
Faster match of character vectors
copy
Copy an entire object
all.equal
Equality Test Between Two Data Tables
as.data.table
Coerce to data.table
foverlaps
Fast overlap joins
fwrite
Fast CSV writer
fsort
Fast parallel sort
duplicated
Determine Duplicate Rows
datatable.optimize
Optimisations in data.table
dcast.data.table
Fast dcast for data.table
frank
Fast rank
first
First item of an object
fread
Fast and friendly file finagler
data.table-package
Enhanced data.frame
na.omit.data.table
Remove rows with missing values on columns specified
print.data.table
data.table Printing Options
melt.data.table
Fast melt for data.table
last
Last item of an object
patterns
Obtain matching indices corresponding to patterns
like
Convenience function for calling regexpr.
merge
Merge two data.tables
IDateTime
Integer based date class
setDTthreads
Set or get number of threads that data.table should use
J
Creates a Join data table
setNumericRounding
Change or turn off numeric rounding
rowid
Generate unique row ids within each group
setDT
Coerce lists and data.frames to data.table by reference
rleid
Generate run-length type group id
setops
Set operations for data tables
setDF
Coerce a data.table to data.frame by reference
setcolorder
Fast column reordering of a data.table by reference
setattr
Set attributes of objects by reference
rbindlist
Makes one data.table from a list of many
setkey
Create key on a data table
transform.data.table
Data table utilities
test.data.table
Runs a set of tests.
special-symbols
Special symbols
timetaken
Pretty print of time taken
setorder
Fast row reordering of a data.table by reference
shift
Fast lead/lag for vectors and lists
split
Split data.table into chunks in a list
subset.data.table
Subsetting data.tables
shouldPrint
For use by packages that mimic/divert auto printing e.g. IRkernel and knitr
tables
Display all objects of class 'data.table'
tstrsplit
strsplit and transpose the resulting list efficiently
transpose
Efficient transpose of list
truelength
Over-allocation access