topic How to use JMP script to sort Data Table by two columns in Discussions

How to use JMP script to sort Data Table by two columns

qspringleaf — Fri, 09 Jun 2023 23:35:55 GMT

Question about How to use JMP script to sort Data Table by two or multiple columns?

Normally data table can sort order by one column, just have left table shows, sort by column "Name".

but how to use JMP to sort by two column? order by both "Name" & 'Date", like the right table shows, kindly help to suggest.

thanks a lot.

txnelson — Tue, 25 Aug 2020 04:09:40 GMT

If you select multiple columns, and then right click on them and select "Sort" the data table will be sorted by all selected columns.
You can go to the Pull Down Menus and select Tables==>Sort and then select whatever columns and whatever ascending/descending combination you want.

Below is a simple sorting script taken directly from the Scripting Index entry for "Sort"

Names Default To Here( 1 );
dt = Open( "$SAMPLE_DATA/Big Class.jmp" );
dt << Sort( By( :name ), Order( Ascending ) );

qspringleaf — Tue, 25 Aug 2020 04:21:05 GMT

thanks, but how to sort Data Table by two or multiple columns? Need sort by name first then sort by date also. thanks a lot.

qspringleaf — Tue, 25 Aug 2020 04:38:08 GMT

but how to use script sort Data Table by two or multiple columns? Need sort by name first then sort by date also. thanks a lot.

txnelson — Tue, 25 Aug 2020 06:46:41 GMT

If you run the sort interactively
1. Tables=>Sort
2. Then in the resulting new data table, you right click on the "Source" entry in the Tables Panel on the upper left portion of the new data table and select "Edit"
3. You will see the JSL that is required to do the Sort

Here is a cleaned up version

Names Default To Here( 1 );
dt = Current data table();
dt << Sort( By( :name, :Date ), Order( Ascending, Ascending ) );

Also, given the example I had provided in my last entry, a guess could have been made on how to expand on it to sort 2 columns.

I strongly recommend that you take the time to read the Scripting Guide in the JMP Documentation Library.