Add custom marker at a certain point on a line graph

[#1]

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!

[#2 · Accepted solution]

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] );
);

[#3]

Works great. Thanks so much. I used the customize box to add the script and it worked without a hitch.

[#4]

@txnelson answered the question about how to do what you want. I want to be sure that you know about a JMP Pro platform that is built to analyze curves and extract curve features for analysis in other JMP platforms. It is called the Functional Data Explorer. Curves are functional data.

[#5]

Thanks! I am analyzing the curve using a different program (which I also use to generate the data), I just find as of now, JMP is the easiest way for me to graph the data how I would like. I'm sure there's much easier solutions out there.