Out with the old in with the new
replace_names(df, oldnames, newnames)
| df | dataframe, a dataframe containing some old column names  | 
    
|---|---|
| oldnames | vector, list of column names to be replaced. Must have the same order and length as new names  | 
    
| newnames | vector, list of column names to replaced the old ones. Must have the same order and length as old names  | 
    
dataframe, dataframe with updated column names