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Install
install.packages('data.table')
Monthly Downloads
789,021
Version
1.11.0
License
MPL-2.0 | file LICENSE
Maintainer
Matt Dowle
Last Published
May 1st, 2018
Functions in data.table (1.11.0)
Search all functions
as.matrix
Convert a data.table to a matrix
data.table-class
S4 Definition for data.table
datatable.optimize
Optimisations in data.table
between
Convenience functions for range subsets.
:=
Assignment by reference
chmatch
Faster match of character vectors
fsort
Fast parallel sort
data.table-package
Enhanced data.frame
fwrite
Fast CSV writer
dcast.data.table
Fast dcast for data.table
fread
Fast and friendly file finagler
setDT
Coerce lists and data.frames to data.table by reference
setNumericRounding
Change or turn off numeric rounding
groupingsets
Grouping Set aggregation for data tables
copy
Copy an entire object
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
setattr
Set attributes of objects by reference
shouldPrint
For use by packages that mimic/divert auto printing e.g. IRkernel and knitr
setcolorder
Fast column reordering of a data.table by reference
setDTthreads
Set or get number of threads that data.table should use
timetaken
Pretty print of time taken
patterns
Obtain matching indices corresponding to patterns
print.data.table
data.table Printing Options
transform.data.table
Data table utilities
tables
Display 'data.table' metadata
test.data.table
Runs a set of tests.
special-symbols
Special symbols
tstrsplit
strsplit and transpose the resulting list efficiently
update.dev.pkg
Perform update of development version of a package
address
Address in RAM of a variable
all.equal
Equality Test Between Two Data Tables
foverlaps
Fast overlap joins
frank
Fast rank
IDateTime
Integer based date class
last
Last item of an object
rowid
Generate unique row ids within each group
like
Convenience function for calling regexpr.
J
Creates a Join data table
duplicated
Determine Duplicate Rows
setDF
Coerce a data.table to data.frame by reference
split
Split data.table into chunks in a list
first
First item of an object
subset.data.table
Subsetting data.tables
truelength
Over-allocation access
transpose
Efficient transpose of list
merge
Merge two data.tables
rbindlist
Makes one data.table from a list of many
melt.data.table
Fast melt for data.table
rleid
Generate run-length type group id
setorder
Fast row reordering of a data.table by reference
shift
Fast lead/lag for vectors and lists
as.data.table.xts
Efficient xts to as.data.table conversion
as.xts.data.table
Efficient data.table to xts conversion
as.data.table
Coerce to data.table