a) rollups of all typed columns with errors and None values keep the display on screen and in newly saved data. b) [all] distinct Exceptions and None values are not grouped together in any context. c) [melt] Nones do not show up for value fields in melt, errors do for now. d) [describe] Nones and errors are not considered when calculating descriptive statistics. e) [pivot] errors (values or in the key column for pivot) are grouped together by their error message and would ideally be displayed similarly on all derivative sheets.
- 'None' refer to values that are Python None, and not just nulls by e.g.
zero_is_null - filtering by
is_nullis applied after typing