Ecfun: nchar0 – R documentation

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nchar0

Zero characters or NULL

Description

Returns TRUE if (is.null(x) || (length(x) == 0) || (max(nchar(x)) == 0)).

Usage

nchar0(x, ...)

Arguments

`x`	a character vector or something that can be coerced to mode character
`...`	optional arguments to be passed to `nchar`

Value

TRUE if x is either NULL or max(nchar(x)) == 0. FALSE otherwise.

Author(s)

Spencer Graves

Examples

all.equal(nchar0(NULL), TRUE)



all.equal(nchar0(character(0)), TRUE)



all.equal(nchar0(character(3)), TRUE)



all.equal(nchar0(c('a', 'c')), FALSE)

Ecfun

Functions for 'Ecdat'

v0.2-4

GPL (>= 2)

Authors

Spencer Graves <spencer.graves@effectivedefense.org>

Initial release

2020-10-26