R: Parse numbers, flexibly

parse_number {readr} | R Documentation

## Parse numbers, flexibly

### Description

This drops any non-numeric characters before or after the first number. The grouping mark specified by the locale is ignored inside the number.

### Usage

    parse_number(x, na = c("", "NA"), locale = default_locale(),
      trim_ws = TRUE)

    col_number()

### Arguments

`x` | Character vector of values to parse.
`na` | Character vector of strings to interpret as missing values. Set this option to `character()` to indicate no missing values.
`locale` | The locale controls defaults that vary from place to place. The default locale is US-centric (like R), but you can use `locale()` to create your own locale that controls things like the default time zone, encoding, decimal mark, big mark, and day/month names.
`trim_ws` | Should leading and trailing whitespace be trimmed from each field before parsing it?

### Value

A numeric vector (double) of parsed numbers.

### See Also

Other parsers: `col_skip`, `cols_condense`, `cols`, `parse_datetime`, `parse_factor`, `parse_guess`, `parse_logical`, `parse_vector`

### Examples

    parse_number("$1000")
    parse_number("1,234,567.78")

[Package readr version 1.3.1 Index]