Column Name certification_2 does not exist in dirty_data.xlsx file

[aegerton]

Here is the code excerpt;-

Clean it with janitor functions:

roster <- roster_raw %>%
clean_names() %>%
remove_empty_rows() %>%
remove_empty_cols() %>%
mutate(hire_date = excel_numeric_to_date(hire_date)) %>%
select(-certification, -certification_2) # drop unwanted columns

Column Name (to drop) should be certification_1 instead