Add custom marker at a certain point on a line graph

syretted

Hi all,

I am plotting data curves for gait data using a line plot, as below.

 

What I am trying to do is add a custom marker at a certain value.  For example, I want to highlight that an event occurs around the 25 mark without obscuring the rest of the graph. I know how to add a vertical reference line, but the graph becomes too busy as it overlays the lines.  Is there a way just to add a custom marker as an overlay to this graph at a certain x-axis value?  Thanks!

txnelson

You can right click on the graph and select Customize, and in there you can add the code to place the marker where you want it. 

Below are a couple of ways you can do it just through scripting

Names Default To Here( 1 );
dt = Open( "$SAMPLE_DATA/big class.jmp" );

Graph Builder(
	Size( 528, 456 ),
	Show Control Panel( 0 ),
	Variables( X( :weight ), Y( :height ) ),
	Elements( Line( X, Y, Legend( 8 ) ) ),
	SendToReport(
		Dispatch(
			{},
			"Graph Builder",
			FrameBox,
			{Add Graphics Script(
				2,
				Description( "" ),
				Marker Size( 9 );
				Pen Color( "Black" );
				Marker( Marker State( 1 ), [113], [69] );
			), Grid Line Order( 1 ), Reference Line Order( 3 ),
			DispatchSeg(
				TopSeg( 1 ),
				{Set Script(
					Marker Size( 9 );
					Pen Color( "Black" );
					Marker( Marker State( 1 ), [113], [69] );
				)}
			)}
		)
	)
);

// or

gb = dt << Graph Builder(
	Size( 528, 456 ),
	Show Control Panel( 0 ),
	Variables( X( :weight ), Y( :height ) ),
	Elements( Line( X, Y, Legend( 8 ) ) )
);
Report( gb )[FrameBox( 1 )] << Add Graphics Script(
	Marker Size( 9 );
	Pen Color( "Black" );
	Marker( Marker State( 1 ), [113], [69] );
);