assert_has_colnames
Does the input have names?
Checks to see if the input has (row/column/dimension) names.
Usage
assert_has_colnames(x, severity = getOption("assertive.severity", "stop"))
assert_has_dimnames(x, severity = getOption("assertive.severity", "stop"))
assert_has_names(x, severity = getOption("assertive.severity", "stop"))
assert_has_rownames(x, severity = getOption("assertive.severity", "stop"))
has_colnames(x, .xname = get_name_in_parent(x))
has_dimnames(x, .xname = get_name_in_parent(x))
has_names(x, .xname = get_name_in_parent(x))
has_rownames(x, .xname = get_name_in_parent(x))Arguments
- x
- Input to check.
- severity
- How severe should the consequences of the assertion be?
Either
"stop","warning","message", or"none". - .xname
- Not intended to be used directly.
Value
has_names returns TRUE if names is
non-null.
has_rownames, has_colnames and has_dimnames work
in a similar fashion, checking the corresponding attributes.
assert_has_names returns nothing but throws an error if
has_names is not TRUE.
Note
Empty names (i.e., "") are not allowed in R, and are
not checked here.
See Also
Examples
library(assertive.properties)
assert_has_names(c(a = 1, 2))
dfr <- data.frame(x = 1:5)
assert_has_rownames(dfr)
assert_has_colnames(dfr)
assert_has_dimnames(dfr)
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