R: Extract a single character from a string, using its index.

str_elem {strex} | R Documentation

## Extract a single character from a string, using its index.

### Description

If the element does not exist, this function returns the empty string.

### Usage

    str_elem(string, index)

### Arguments

`string` | A string.
`index` | An integer. Negative indexing is allowed as in `stringr::str_sub()`.

### Value

A one-character string.

### Examples

    str_elem(c("abcd", "xyz"), 3)
    str_elem("abcd", -2)

[Package strex version 0.1.3 Index]