Check Double — chk_double • chk

Checks if double using

is.double(x)

Usage

chk_double(x, x_name = NULL)

vld_double(x)

Arguments

x: The object to check.
x_name: A string of the name of object x or NULL.

Value

The chk_ function throws an informative error if the test fails or returns the original object if successful so it can used in pipes.

The vld_ function returns a flag indicating whether the test was met.

Functions

vld_double(): Validate Double

See also

For more details about the use of this function, please read the article vignette("chk-families").

Other data_type_checkers: chk_character(), chk_character_or_factor(), chk_complex(), chk_environment(), chk_integer(), chk_logical(), chk_numeric(), chk_raw()

Examples

# chk_double
chk_double(1)
try(chk_double(1L))
#> Error in eval(expr, envir) : `1L` must be double.
# vld_double
vld_double(1)
#> [1] TRUE
vld_double(matrix(c(1, 2, 3, 4), nrow = 2L))
#> [1] TRUE
vld_double(double(0))
#> [1] TRUE
vld_double(numeric(0))
#> [1] TRUE
vld_double(NA_real_)
#> [1] TRUE
vld_double(1L)
#> [1] FALSE
vld_double(TRUE)
#> [1] FALSE