8.7 Judge belongingness of sets when order is considered
Here below is a monthly sales ranking table for the first quarter:
Find out the month that contains the top 3 products by total sales in the first quarter (same ranking order is required):
| A | |
|---|---|
| 1 | =E(‘A1:D16’) |
| 2 | =A1.groups(ProductName;sum(Sales):Sales).sort(Sales:-1).(ProductName)(to(3)) |
| 3 | return A1.group@o(Month).select(~.(ProductName).pos@c(A2)!=null).id(Month) |
A1: Convert the passed-in data to a two-dimensional table sequence.
A2: Calculate the top 3 products by total sales in the first quarter.
A3: When the pos@c() judges the belongingness of sets, the order of members should be the same.
Result: Jan
esProc Desktop and Excel Processing
8.6 Judge equality of sets when order is considered
8.8 Judge equality of sets when order is ignored
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