Check that at least one name is among column names

Usage

check_one_colnames(df, x, null_ok = TRUE, qualifier = NULL)

Arguments

df

(data.frame)

x

(character) the names of the columns to be checked.

null_ok

(flag) can x be NULL.

qualifier

(string) to be returned if the check fails.

Examples

check_one_colnames(mtcars, c("new", "hoho"))
#> [1] " At least one of: new, hoho is expected to be a column name of mtcars"