How to use Partition platform in JSL?

[#1]

Is there any way to automate the Partition platform using JSL?

E.g., say I want to model the "Consumer Prices.jmp" dataset as step-function changes in each commodity price. I can do this in the Partition Platform:

1) Open "Consumer Prices.jmp"
2) Analyze -> Predictive Modeling -> Partition
3) Cast Price as Y, Date as X, and Series Full as By, with a 0.25 validation portion
4) Click "Go" for each commodity to do the automated partition
5) Save Columns -> Save Prediction Formula

Now, is there any way to replicate that in JSL? When I try to Save Script it saves a partition with an Initial Splits argument with the split dates pre-filled, but I don't know how to script the analysis that selects the splits (i.e. the analysis done when you click the "Go" button.)

Using JMP Pro 14.3.0 on Windows 10

[#2 · Accepted solution]

Names Default to Here( 1 );

// example
dt = Open( "$SAMPLE_DATA/Consumer Prices.jmp" );

tree = dt << Partition(
	Y( :Price ),
	X( :Date ),
	Validation Portion( 0.25 ),
	Show Tree( 0 ),
	Split History( 1 ),
	Informative Missing( 1 ),
	By( :Series Full )
);

tree << Go;
Wait( 0 );
tree << Save Prediction Formula;

[#3]

Thanks!