data.frame has colnames — check_valid_dataframe

Assert that data.frame contains a set of user defined column names.

Usage

check_valid_dataframe_column(data, colnames, error_call = rlang::caller_env())

data: dataframe that you want to assert contain specific columns (data.frame)
colnames: Name (character)
error_call: error call environment (do not change)

invisibly returns TRUE. If data is missing columns, will throw error

data.frame may have any additional colnames. It just has to have AT LEAST the columns specified by colnames

Informs user about the missing columns one at a time. This may change in future

# Check mtcars has columns 'mpg' and 'cyl'
ggoncoplot:::check_valid_dataframe_column(mtcars, c("mpg", "cyl"))