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Checks if double scalar using
is.double(x) && length(x) == 1L
chk_dbl(x, x_name = NULL)vld_dbl(x)
vld_dbl(x)
The chk_ function throws an informative error if the test fails or returns the original object if successful so it can used in pipes.
chk_
The vld_ function returns a flag indicating whether the test was met.
vld_
The object to check.
A string of the name of object x or NULL.
vld_dbl(): Validate Double
vld_dbl()
Other deprecated: chk_chr(), chk_deprecated, chk_wnum()
chk_chr()
chk_deprecated
chk_wnum()
# chk_dbl chk_dbl(1) try(chk_dbl(1L)) # vld_dbl vld_dbl(1) vld_dbl(double(0)) vld_dbl(NA_real_) vld_dbl(c(1, 1)) vld_dbl(1L)
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