sjmisc: is_num_fac – R documentation

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is_num_fac

Check whether a factor has numeric levels only

Description

is_num_fac() checks whether a factor has only numeric or any non-numeric factor levels, while is_num_chr() checks whether a character vector has only numeric strings.

Usage

is_num_fac(x)

is_num_chr(x)

Arguments

`x`	A factor for `is_num_fac()` and a character vector for `is_num_chr()`

Value

Logical, TRUE if factor has numeric factor levels only, or if character vector has numeric strings only, FALSE otherwise.

Examples

# numeric factor levels
f1 <- factor(c(NA, 1, 3, NA, 2, 4))
is_num_fac(f1)

# not completeley numeric factor levels
f2 <- factor(c(NA, "C", 1, 3, "A", NA, 2, 4))
is_num_fac(f2)

# not completeley numeric factor levels
f3 <- factor(c("Justus", "Bob", "Peter"))
is_num_fac(f3)

is_num_chr(c("a", "1"))
is_num_chr(c("2", "1"))

sjmisc

Data and Variable Transformation Functions

v2.8.6

GPL-3

Authors

Daniel Lüdecke [aut, cre] (<https://orcid.org/0000-0002-8895-3206>), Iago Giné-Vázquez [ctb], Alexander Bartel [ctb] (<https://orcid.org/0000-0002-1280-6138>)

Initial release