JSL : Top3 volume per week per site

[#1]

I have a table below stating the defects per week per manufacturing site. How do I write a JMP script to output another table stating just the top 3 defects per week per site? I am using JMP17.

Defects	Date	Site1	Site2
Bondpad	2023_WK4	166
Bump_Deformities	2023_WK4	2868	1085
Contamination	2023_WK4	75121	22763
Crack	2023_WK4	5726
Discoloration	2023_WK4	1762
Distorted_Break	2023_WK4		56
Lifting	2023_WK4	6717
Missing_Bump	2023_WK4	565
Missing_Die	2023_WK4	639
Other	2023_WK4	2855
Scratch	2023_WK4	98115	79122
Test_Failure	2023_WK4	192
Twin	2023_WK4	2704	11841
Bondpad	2023_WK5	178
Bump_Deformities	2023_WK5	716	192
Contamination	2023_WK5	37999	43074
Crack	2023_WK5	4110	2452
Discoloration	2023_WK5	3326
Lifting	2023_WK5	12145
Missing_Bump	2023_WK5	352
Missing_Die	2023_WK5	984
Other	2023_WK5	8878
Scratch	2023_WK5	71792	32075
Streaking	2023_WK5	5
Test_Failure	2023_WK5	359
Twin	2023_WK5	9011	10987

[#2 · Accepted solution]

Here is a little script that produces the below output

Names Default To Here( 1 );
dt = Current Data Table();

dtStack = dt << Stack(
	columns( :Site1, :Site2 ),
	Source Label Column( "Site" ),
	Stacked Data Column( "Defect Count" ),
	Output Table( "Stacked" )
);

dtStack << Sort(
	By( :Date, :Site, :Defect Count ),
	Order( Ascending, Ascending, Descending ),
	Replace Table( 1 )
);

// New column: Column 5
dtStack << New Column( "Rank",
	Numeric,
	"Continuous",
	Format( "Best", 12 ),
	formula( Col Cumulative Sum( 1, :Date, :Site ) )
);

dtStack:Rank << delete formula;

dtStack << Select Where( :Rank > 3 );
dtStack << delete rows;

[#3]

Jim, it works beautifully! Thanks!