In Lab 04, just before Task 14 where it discusses how to group by more than one column, the example call structure shown reads as "The format would be tbl.group('Label 1', 'Label 2'], collect)". The example structure is missing the opening square bracket '[' for the list of columns, 'Label 1' and 'Label 2', on which to group by.
shawnwiggins
commented
1 year ago
In Lab 04, just before Task 14 where it discusses how to group by more than one column, the example call structure shown reads as "The format would be tbl.group('Label 1', 'Label 2'], collect)". The example structure is missing the opening square bracket '[' for the list of columns, 'Label 1' and 'Label 2', on which to group by.