Creating New Graphs From Scratch | JMP 12

JMP Support 800.450.0135 (US)

Documentation Feedback
Your feedback is important to us. us any comments about our documentation.

Scripting Guide • Scripting Graphs • Creating New Graphs From Scratch

•

Creating New Graphs From Scratch

Graphics scripts are set up within the Graph Box command within a New Window command.

New Window("window title", <Editable|Dialog>, Graph Box( named arguments,..., script));

There are two optional keywords after the window name. Editable treats the window like a Journal window (so report items can be dragged and dropped onto them). Dialog treats the window like a modal window, so it shows up with a gray background on the Macintosh.

Graph Box takes named arguments for:

FrameSize(horizontal, vertical), // size in pixels

XScale(xmin, xmax), YScale(ymin, ymax), // range of x, y axes

X Axis(messages), Y Axis (messages), // the usual axis controls

Double Buffer // for smooth animation

XName, YName // names for x, y axes

Here is a script that plays a smoothed random walk around the frame. Because this uses random numbers, your display might differ.

New Window( "Smoothed Random Walk",

FrameSize( 200, 200 ),

X Scale( -20, 20 ),

Y Scale( -20, 20 ),

For( i = 0, i < 2000, i++,

xi = .9 * xi + Random Normal() / 10;

yi = .9 * yi + Random Normal() / 10;

Line( {x, y}, {xx, yy} );

Creating a Graph

Making Changes to Graphs

You can also make changes to graphs through scripting. For example, create a window with a graph and get a reference to the report:

open("$SAMPLE_DATA/Big Class.jmp");

biv = Bivariate( Y( :weight ), X( :height ), Fit Line );

rbiv = biv<<report;

Using subscripting, you can send messages to any part of that report. Use Show Tree Structure to discover how to reference them. See View Display Tree in Display Trees for details about the tree structure. See By Subscript in Display Trees on using subscripts. This line re-sizes the graph to 400 pixels by 400 pixels:

rbiv[frame box(1)]<<frame size(400,400);

To see a list of possible messages for any given display box object, use Show Properties. For example, here is a partial list of messages that you can send to an axis:

Show Properties(rbiv[axis box(1)]);

Axis Settings [Action](Bring up the Axis window to change various settings.)

Revert Axis [Action](Restore the settings that this axis had originally.)

Add Axis Label [Action]

Remove Axis Label [Action]

Save To Column Property [Action](Save the Axis settings as an Axis property in the data column associated with this axis.)

Set Width [Action] [Scripting Only]

Axis [Subtable] [Scripting Only]

Scale [Enum] {Linear, Log, Exp Prob, Weibull Prob, Logistic Prob, Frechet Prob, Lognormal Prob, Cube Root}

Tick Font [Action]

Interval [Enum] [Scripting Only] {Numeric, Year, Month, Week, Day, Hour, Minute, Second}

For example, to change the font of both axis labels (weight and height in the example above, which are both text edit boxes attached to the axis boxes) to 12-point, italic Arial Black:

rbiv[Text Edit Box( 1 )] << set font( "Arial Black", 12, Italic);

rbiv[Text Edit Box( 2 )] << set font( "Arial Black", 12, Italic);

rbiv[Text Edit Box( 1 )] << set font( "Arial Black" );

rbiv[Text Edit Box( 1 )] << set font style( "Italic" );

rbiv[Text Edit Box( 1 )] << set font size( 12 );

rbiv[Text Edit Box( 2 )] << set font( "Arial Black" );

rbiv[Text Edit Box( 2 )] << set font style( "Italic" );

rbiv[Text Edit Box( 2 )] << set font size( 12 );

For all display boxes, <<Set Font Name messages are ignored if the font is not installed on the computer.