is_numeric_string: Does the string contain a number/logical value?

In assertive.strings: Assertions to Check Properties of Strings

Description

Check to see if a character vector contains numeric/logical strings.

Usage

assert_all_are_numeric_strings(x, na_ignore = FALSE,
  severity = getOption("assertive.severity", "stop"))

assert_any_are_numeric_strings(x, na_ignore = FALSE,
  severity = getOption("assertive.severity", "stop"))

assert_all_are_logical_strings(x, na_ignore = FALSE,
  severity = getOption("assertive.severity", "stop"))

assert_any_are_logical_strings(x, na_ignore = FALSE,
  severity = getOption("assertive.severity", "stop"))

is_numeric_string(x, .xname)

is_logical_string(x, .xname)

Arguments

x	A character vector.
na_ignore	A logical value. If FALSE, NA values cause an error; otherwise they do not. Like na.rm in many stats package functions, except that the position of the failing values does not change.
severity	How severe should the consequences of the assertion be? Either "stop", "warning", "message", or "none".
.xname	Not intended to be used directly.

Value

is_numeric_string returns a logical vector that is TRUE when the string contains numbers. The corresponding assert_* functions return nothing but throw an error on failure.

Examples

is_numeric_string(c("1", "1.1", "-1.1e1", "one", NA))
# R only treats certain capitalizations of "true" and "false" as logical
x <- c(
  "TRUE", "FALSE", "true", "false", "True", "False", "trUE", "FaLsE", 
  "T", "F", "t", "f"
)
is_logical_string(x)

assert_all_are_numeric_strings(c("1", "2.3", "-4.5", "6e7", "8E-9"))
assert_any_are_numeric_strings(c("1", "Not a number"))

assertive.strings documentation built on May 1, 2019, 8:45 p.m.