R: Extract non-numbers from a string.

extract_non_numerics {filesstrings} | R Documentation

## Extract non-numbers from a string.

### Description

See `strex::str_extract_non_numerics()`

### Usage

    extract_non_numerics(string, decimals = FALSE,
      leading_decimals = decimals, negs = FALSE, sci = FALSE,
      commas = FALSE)

    str_extract_non_numerics(string, decimals = FALSE,
      leading_decimals = decimals, negs = FALSE, sci = FALSE,
      commas = FALSE)

    nth_non_numeric(string, n, decimals = FALSE,
      leading_decimals = decimals, negs = FALSE, sci = FALSE,
      commas = FALSE)

    str_nth_non_numeric(string, n, decimals = FALSE,
      leading_decimals = decimals, negs = FALSE, sci = FALSE,
      commas = FALSE)

    first_non_numeric(string, decimals = FALSE,
      leading_decimals = decimals, negs = FALSE, sci = FALSE,
      commas = FALSE)

    str_first_non_numeric(string, decimals = FALSE,
      leading_decimals = decimals, negs = FALSE, sci = FALSE,
      commas = FALSE)

    last_non_numeric(string, decimals = FALSE, leading_decimals = decimals,
      negs = FALSE, sci = FALSE, commas = FALSE)

    str_last_non_numeric(string, decimals = FALSE,
      leading_decimals = decimals, negs = FALSE, sci = FALSE,
      commas = FALSE)

### Arguments

`string` | A string.
`decimals` | Do you want to include the possibility of decimal numbers (`TRUE`) or not (`FALSE`, the default).
`leading_decimals` | Do you want to allow a leading decimal point to be the start of a number?
`negs` | Do you want to allow negative numbers? Note that double negatives are not handled here (see the examples).
`sci` | Make the search aware of scientific notation e.g. 2e3 is the same as 2000.
`commas` | Allow comma separators in numbers (i.e. interpret 1,100 as a single number (one thousand one hundred) rather than two numbers (one and one hundred)).
`n` | A vector of integerish values. Must be either length 1 or have length equal to the length of `string`. Negative indices count from the back: while `n = 1` and `n = 2` correspond to first and second, `n = -1` and `n = -2` correspond to last and second-last. `n = 0` will return `NA`.

[Package filesstrings version 3.1.0 Index]