extraoperators

An R package with operators to help speed up everyday tasks.

Installation

To get the latest development version, use:

#install.packages("devtools")
devtools::install_github("JWiley/extraoperators")

Otherwise to get from CRAN use:

install.packages("extraoperators")

Overview

The table below summarizes what this package provides. Fundamentally it provides or expands on 14 different logical operators, which can be accessed on their own to return a logical vector, but also prefixed by ? (which) to return the indices that are TRUE or prefixed by s (subset) to return only those values that are TRUE or prefixed by a (all) to return a single logical value, are ALL true? An entire all logical comparison can be prefixed by ! to generate a NONE evaluation.

Operator	What it does	Which?	Subset	All
==	Are values / vectors equal	%?==%	%s==%	%a==%
!=	Are values / vector NOT equal	%?!=%	%s!=%	%a!=%
%l%	Less than	%?l%	%sl%	%al%
%le%	Less than or equal	%?le%	%sle%	%ale%
%g%	Greater than	%?g%	%sg%	%ag%
%ge%	Greater than or equal	%?ge%	%sge%	%age%
%gl%	Greater than AND less than	%?gl%	%sgl%	%agl%
%gel%	Greater than or equal AND less than	%?gel%	%sgel%	%agel%
%gle%	Greater than AND less than or equal	%?gle%	%sgle%	%agle%
%gele%	Greater than or equal AND less than or equal	%?gele%	%sgele%	%agele%
%in%	In	%?in%	%sin%	%ain%
%!in% OR %nin%	Not in	%?!in% OR %?nin%	%s!in% OR %snin%	%a!in% OR %anin%
%c%	Chain operations on the RHS together	%?c%	%sc%	%ac%
%e%	Set operator, to use set notation	%?e%	%se%	%ae%
%grepl%	does text match a regular expression	%?grepl%	%sgrepl%	%agrepl%
%!grepl%	does text NOT match a regular expression	%?!grepl%	%s!grepl%	%a!grepl%

Using these operators, you can accomplish many different tasks by just remembering the additional prefixes: ? for which(), a for all() and s for subset(). While simple, this can save quite a few keystrokes and make various logical comparisons less convoluted.