subsetters: Subsetting operators

In jtools: Analysis and Presentation of Social Scientific Data

Subsetting operators

Description

⁠%just%⁠ and ⁠%not%⁠ are subsetting convenience functions for situations when you would do x[x %in% y] or x[x %nin% y]. See details for behavior when x is a data frame or matrix.

Usage

x %not% y

x %not% y <- value

x %just% y

x %just% y <- value

## Default S3 method:
x %not% y

## Default S3 method:
x %not% y <- value

## S3 method for class 'data.frame'
x %not% y

## S3 method for class 'data.frame'
x %not% y <- value

## S3 method for class 'matrix'
x %not% y

## S3 method for class 'matrix'
x %not% y <- value

## S3 method for class 'list'
x %not% y

## S3 method for class 'list'
x %not% y <- value

## Default S3 method:
x %just% y

## Default S3 method:
x %just% y <- value

## S3 method for class 'data.frame'
x %just% y

## S3 method for class 'data.frame'
x %just% y <- value

## S3 method for class 'matrix'
x %just% y

## S3 method for class 'matrix'
x %just% y <- value

## S3 method for class 'list'
x %just% y

## S3 method for class 'list'
x %just% y <- value

Arguments

x	Object to subset
y	List of items to include if they are/aren't in x
value	The object(s) to assign to the subsetted x

Details

The behavior of ⁠%not%⁠ and ⁠%just%⁠ are different when you're subsetting data frames or matrices. The subset y in this case is interpreted as column names or indices.

You can also make assignments to the subset in the same way you could if subsetting with brackets.

Value

All of x that are in y (⁠%just%⁠) or all of x that are not in y (⁠%not%⁠).

See Also

Other subsetters: %nin%()

Other subsetters: %nin%()

Other subsetters: %nin%()

Other subsetters: %nin%()

Other subsetters: %nin%()

Other subsetters: %nin%()

Other subsetters: %nin%()

Other subsetters: %nin%()

Other subsetters: %nin%()

Other subsetters: %nin%()

Other subsetters: %nin%()

Other subsetters: %nin%()

Other subsetters: %nin%()

Other subsetters: %nin%()

Other subsetters: %nin%()

Other subsetters: %nin%()

Other subsetters: %nin%()

Other subsetters: %nin%()

Other subsetters: %nin%()

Other subsetters: %nin%()

Examples

 x <- 1:5
 y <- 3:8
 
 x %just% y # 3 4 5
 x %not% y # 1 2

 # Assignment works too
 x %just% y <- NA # 1 2 NA NA NA
 x %not% y <- NA # NA NA 3 4 5
 
 mtcars %just% c("mpg", "qsec", "cyl") # keeps only columns with those names
 mtcars %not% 1:5 # drops columns 1 through 5

 # Assignment works for data frames as well
 mtcars %just% c("mpg", "qsec") <- gscale(mtcars, c("mpg", "qsec"))
 mtcars %not% c("mpg", "qsec") <- gscale(mtcars %not% c("mpg", "qsec"))
 
 

jtools documentation built on July 26, 2023, 5:45 p.m.