topic Re: Box-plot + dot plot + half violin plot in Discussions

Box-plot + dot plot + half violin plot

GiuseppeC — Sun, 11 Jun 2023 11:24:22 GMT

Dear all,

does anyone know if with JMP it is possible to create a graph showing the box-plots with the points inside each box and showing half of a violin plot.
In practice, a graph similar to the one attached, but with the points inside each box-plot.

Thanks

Giuseppe

Re: Box-plot + dot plot + half violin plot

Mark_Bailey — Thu, 19 May 2022 13:20:48 GMT

Yes, it is possible. Graph Builder is the tool in JMP for this visualization. Have you read the Essential Graphing guide in JMP Hlep?

Re: Box-plot + dot plot + half violin plot

txnelson — Thu, 19 May 2022 14:51:43 GMT

I don't know a direct way of getting Graph Builder to do the half Violin chart, except to add a rectangle to hide half of it. But here is an example

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

gb = Graph Builder(
	Size( 570, 510 ),
	Variables( X( :sex ), Y( :height ) ),
	Elements(
		Box Plot( X, Y, Legend( 6 ) ),
		Points( X, Y, Legend( 7 ) ),
		Contour( X, Y, Legend( 8 ), Adapt to Axis Scale( 0 ) )
	)
);
Report( gb )[FrameBox( 1 )] << Add Graphics Script(
	5,
	Description( "" ),
	Pen Color( "white" );
	Pen Size( 2 );
	Fill Color( "white" );
	Rect( -.5, 75, 0, 40, 1 );

);
Report( gb )[FrameBox( 1 )] << Add Graphics Script(
	6,
	Description( "" ),
	Pen Color( "white" );
	Pen Size( 2 );
	Fill Color( "white" );	
	Rect( .5, 75, 1, 40, 1 );
);
Report( gb )[FrameBox( 1 )] << Reorder Segs( {1, 2, 10, 11, 5, 6} );

Re: Box-plot + dot plot + half violin plot

Jordan_Hiller — Thu, 19 May 2022 16:20:06 GMT

Another option: Use "Positive Grid" jittering for the points. Data and script attached.

Re: Box-plot + dot plot + half violin plot

GiuseppeC — Thu, 19 May 2022 20:56:50 GMT

Thank you so much.
I tried to run the program on my data, but I realized that I have to change the values in "rect", because using your data I don't get the half violin.
What do the 5 values present in "rect" represent?
If I wanted to load external data for example in excel format, what should I write in "open"?
I can program a little in SAS, but I don't know the JMP language which I use because it helps me to make graphics without going crazy writing long programs that SAS requires.

Giuseppe

Re: Box-plot + dot plot + half violin plot

GiuseppeC — Thu, 19 May 2022 20:59:48 GMT

Thanks for the reply,
however my goal is to show half violin which gives me the idea of how the data are distributed.
The dots alone don't help me much.
Giuseppe

Re: Box-plot + dot plot + half violin plot

GiuseppeC — Thu, 19 May 2022 21:02:40 GMT

Thanks for the reply,
I have seen the documents present in the Essential Graphing, but there is nothing that comes close to my goal.
The only way is to write an ad-hoc program.
Giuseppe

Re: Box-plot + dot plot + half violin plot

txnelson — Thu, 19 May 2022 22:15:51 GMT

The Essential Graphing document covers the usage of Graph Builder. For the adding of a graphics script, that documentation is in the Scripting Guide, with the functions detailed with examples in the Scripting Index. All of these are available under the Help pull down menu.

The Add Graphis Scripts that I added to the base Graph Builder simply places a white rectangle over half of the violin plot, using a rect() function. Rect() draws a rectangle. This is detailed in the Scripting Index. The values are (left, top, right, bottom, and should the rectangle be a filled or empty rectangle). Since the X variable is a nominal(character) variable the x coordinates for each of the values in X start at 0 and are incremented by 1. This determines the Left and Right values for the rectangle. Typically the top and bottom values are set by the Col Min() and Col Max() values for the Y column.

There will have to be 1 Add Graphics Script section for each of the values of the X variable.

The Reorder Segs sets the order the various components of the chart and which front to back order they should have. One needs to have the rectangle object in front of the violin, but behind the box plot.

Re: Box-plot + dot plot + half violin plot

GiuseppeC — Fri, 20 May 2022 09:04:31 GMT

Dear Txnelson,

THANKS YOU SO MUCH,

always valuable advice and above all problem solved.

Giuseppe

Re: Box-plot + dot plot + half violin plot

GiuseppeC — Tue, 27 Sep 2022 09:32:01 GMT

Dear Jim,

I tried to reapply your procedure on other data, but I can't see the graph.

I changed the data in the "rect" statement by putting the values of min, max, 25 ° and 75 ° of the box-plot, but nothing.

I have read what is indicated in the Scripting Index, but the result is a failure.

Could I ask you for help?

I guess a direct way to overcome this problem doesn't exist, does it?

Thank you very much for your help.

Giuseppe