Add ref line and column switcher

Question

Hi all, I have two questions: 1) when I switch column with column switcher, I can't add ref line anymore. for example Names Default To Here( 1 ); dt = Open( "$SAMPLE_DATA/Big Class.jmp" ); obj = dt << Bivariate( Y( :height ), X( :weight ) ); ColumnSwitcherObject = obj << Column Switcher( :height, {:name, :age, :sex, :height} ); gbReport = obj << report;

axisbox = gbReport[axis box( 1)]; now when I run the next line axisbox << Add Ref Line(60, "Dotted", yellow, "TR", 2 ); It's working. But if run this two lines ColumnSwitcherObject << set current("age"); axisbox << Add Ref Line(14, "Dotted", yellow, "TR", 2 );

It giving me this error

deleted object reference: axisbox << Add Ref Line(14, "Dotted", yellow, "TR", 2) in access or evaluation of 'Send' , axisbox <<  /*###*/Add Ref Line( 14, "Dotted", yellow, "TR", 2 ) /*###*/In the following script, error marked by /*###*/axisbox <<  /*###*/Add Ref Line( 14, "Dotted", yellow, "TR", 2 ) /*###*/

 

 

2) Is there a way to execute a script when switching columns in column switcher? Something like "makerowstatehandler" when we use local data filter?

 

Thanks.

txnelson · Answer

The column switcher has the habit to drop its reference when a column is swapped out.  By either embedding the reference line into the code

Bivariate(
	Y( :height ),
	X( :weight ),
	SendToReport(
		Dispatch(
			{},
			"2",
			ScaleBox,
			{Add Ref Line( 62.9375, "Dashed", "Yellow", "TR", 1 )}
		)
	)
);

or adding the code by using

<<add graphics script

I believe you can get around the issue

or

avner8943 · Answer

Thanks,

But it's showing me this error

axisbox << Add Ref Line( 14, "Dotted", yellow, "TR", 2 );

and not displaying the line

Justin_Chilton · Answer

For #1, you need to re-run the line that sets the AxisBox variable first. This is because the Column Switcher in JMP re-generates the report when the column changes, so the old references to the report and axis box are no longer valid.

// Always needs to happen in this order
gbReport = obj << report;
axisbox = gbReport[axis box( 1 )];
axisbox << Add Ref Line(14, "Dotted", yellow, "TR", 2 );

For #2, I do not believe there is an equivalent handler for Column Switcher like there is for the Data Filter. This might be a good idea for the JMP Wish List.