R: Add or Remove Parentheses

paren {spatstat.utils} | R Documentation

## Add or Remove Parentheses

### Description

Add or remove enclosing parentheses around a string.

### Usage

    paren(x, type = "(")
    unparen(x)

### Arguments

`x` | A character string, or vector of character strings.
`type` | Type of parentheses: either `"("`, `"["` or `"{"`.

### Details

`paren(x)` adds enclosing parentheses to the beginning and end of the string `x`.

`unparen(x)` removes enclosing parentheses if they are present.

### Value

A character string, or vector of character strings of the same length as `x`.

### Author(s)

Adrian Baddeley Adrian.Baddeley@curtin.edu.au.

### See Also

`commasep`

### Examples

      paren("Hello world")
      paren(42, "[")
      paren(letters[1:10])
      unparen(c("(yes)", "[no]", "{42}"))

[Package spatstat.utils version 1.17-0 Index]