Is a Character a Number?

Compares against the values of 0:9 (as a number).

Usage

is_number(x)

Arguments

x

A vector of characters.

Value

A boolean vector indicating whether each element of x is a number (appears in 0:9 as a number)

Examples

is_number(chars("Lee7c0deR"))
#>     L     e     e     7     c     0     d     e     R 
#> FALSE FALSE FALSE  TRUE FALSE  TRUE FALSE FALSE FALSE 

Filter(is_number, chars("w00t"))
#> [1] "00"