Is there is a way to a column as a calculated running total of another column? Example:
Order# Weight Cuml weight
A 5 5
B 10 15
C 6 21
I know this can be done using SQL SUM…OVER(ORDER BY) clause, but would prefer to do with on_data_display callback function. With SQL clause, if user clicks on Weight column to sort, Cuml column is still based on Order #.
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