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How to get multiple nodes in JMP, Please Help. Thank You...

question

Community Trekker

Joined:

Mar 14, 2013

Hi,

I am building a Decision Tree in JMP and I would like to have for example 4 nodes for each split. Please see attached an example of a Decision Tree I would like. JMP automatically gives me binary splits (Two nodes). Is it there any option that enables me to specify the number of nodes (segments) I want for each split?

Many thanks

2 REPLIES
Jeff_Perkinson

Community Manager

Joined:

Jun 23, 2011

JMP only does binary splits.

However, you can accomplish what you want by forcing a node to split on the same variable using the Split Specific option.

Here's an example.

3266_JMPScreenSnapz004.png

The first split here was on Paper Type. I want to separate the Coated from the Uncoated in the left node to get a three way split.

Choose Split Specific from the red triangle menu.

3267_JMPScreenSnapz001.png

Then choose Paper Type from the dialog.

3269_JMPScreenSnapz002.png

You'll get this.

3270_JMPScreenSnapz003.png

Those three nodes represent the three way split. Keep going in this way if you need more splits.

-Jeff

-Jeff
question

Community Trekker

Joined:

Mar 14, 2013

Many Thanks Jeff, thta's really helpful....

Alice