Problem description & analysis:
There’s a tree structure Excel table, where the Epic column is the highest data layer.
Task: Group rows by Epic, the highest data layer, and summarize the Hours column while keeping the Code column. Below is the expected result:
Solution:
Use SPL XLL to perform the computation:
As shown in the picture below:
group@i function performs the conditional grouping. Symbol ~ represents the current group; new()function creates a new table; ifn() function returns the first non-null member (return 0 when the aggregation result on the current group is null).