Here is a simple example
names default to here(1);
dt =
// Open Data Table: Big Class.jmp
// → Data Table( "Big Class" )
Open( "$SAMPLE_DATA/Big Class.jmp" );
dtSumm = Data Table( "Big Class" ) << Summary(
Mean( :height ),
Freq( "None" ),
Weight( "None" ),
output table name( "Summary of Big Class" )
);
dtSumm << New column("Ratio", formula(:"Mean(height)"n/56))
![txnelson_0-1717083578197.png txnelson_0-1717083578197.png](https://community.jmp.com/t5/image/serverpage/image-id/64637i0B0AD9EF177352B5/image-size/medium?v=v2&px=400)
If you are using the Tabulate Platform, you will need to generate the calculated value in the data table, and then display it in the Tabulate output
![txnelson_1-1717083682275.png txnelson_1-1717083682275.png](https://community.jmp.com/t5/image/serverpage/image-id/64638i4F9F4450B13D6CD6/image-size/medium?v=v2&px=400)
![txnelson_3-1717083727403.png txnelson_3-1717083727403.png](https://community.jmp.com/t5/image/serverpage/image-id/64640iA53C226FDC640F8C/image-size/medium?v=v2&px=400)
or create a virtual column in Tabulate and use it in the display
![txnelson_4-1717083917910.png txnelson_4-1717083917910.png](https://community.jmp.com/t5/image/serverpage/image-id/64641iBD6B8FB1554F1D8C/image-size/medium?v=v2&px=400)
![txnelson_6-1717083977035.png txnelson_6-1717083977035.png](https://community.jmp.com/t5/image/serverpage/image-id/64643iFB9830B2622205F6/image-size/medium?v=v2&px=400)
If this is not how you are creating your summary table, please provide a sample of what you are doing
Jim