Check Double Scalar — chk_dbl • chk

Checks if double scalar using

is.double(x) && length(x) == 1L

Usage

chk_dbl(x, x_name = NULL)

vld_dbl(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_dbl(): Validate Double

See also

Other deprecated: chk_chr(), chk_deprecated, chk_wnum()

Examples

# chk_dbl
chk_dbl(1)
try(chk_dbl(1L))
#> Warning: `chk_dbl()` was deprecated in chk 0.6.1.
#> ℹ Please use `chk::chk_scalar(x);` `chk::chk_double(x)` instead
#> Error in eval(expr, envir) : `1L` must be double (real) scalar.
# vld_dbl
vld_dbl(1)
#> [1] TRUE
vld_dbl(double(0))
#> [1] FALSE
vld_dbl(NA_real_)
#> [1] TRUE
vld_dbl(c(1, 1))
#> [1] FALSE
vld_dbl(1L)
#> [1] FALSE