This function returns a logical value that indicates if a data
frame or another named object contains an element with a specific
name. Note that has_name()
only works with vectors. For instance,
environments need the specialised function env_has()
.
has_name(x, name)
x | A data frame or another named object |
---|---|
name | Element name(s) to check |
A logical vector of the same length as name
Unnamed objects are treated as if all names are empty strings. NA
input gives FALSE
as output.
has_name(iris, "Species") #> [1] TRUE has_name(mtcars, "gears") #> [1] FALSE