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table.express (version 0.4.2)

Build 'data.table' Expressions with Data Manipulation Verbs

Description

A specialization of 'dplyr' data manipulation verbs that parse and build expressions which are ultimately evaluated by 'data.table', letting it handle all optimizations. A set of additional verbs is also provided to facilitate some common operations on a subset of the data.

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Install

install.packages('table.express')

Monthly Downloads

263

Version

0.4.2

License

MPL-2.0

Issues

Pull Requests

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Repository

https://github.com/asardaes/table.express

Homepage

https://asardaes.github.io/table.express/

Maintainer

Last Published

April 2nd, 2023

Functions in table.express (0.4.2)

Nest expressions as a functional chain

mutate-table.express

Add or update columns

Mutate subset of data

Set key to group by

Objects exported from other packages

group_by-table.express

Grouping clauses

Append expressions to the frame

order_by-table.express

Order by clause

select-table.express

Transmute subset of data

where-table.express

table.express-package

Building 'data.table' expressions with data manipulation verbs

transmute-table.express

Compute new columns

Start expression

summarize-table.express

Summarize columns

EagerExprBuilder

Eager frame expression builder

Find rows with extrema in specific columns

Filter with secondary indices

filter-table.express

distinct-table.express

Rows with distinct combinations of columns

arrange-table.express

End and evaluate expression

Filter subset of data

Frame expression builder