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- Copy column prediction formulas to new column

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Jul 27, 2017 4:59 AM
(995 views)

Hi community,

This is probably an easy fix, but I'm stumped... I am looking for a scripting answer.

I am trying to make a generic workflow in a JSL add-on consisting of the following steps:

1: Create new column with non-linear prediction expression and parameters (done)

2: Model non-linear data with prediction expression and fit by groups (done)

3: Save prediction formula by groups in a new column (done)

4: Copy prediction formulas (from 3.) into a new column and differentiate by column(X) (help!)

Basically, I am trying to copy a prediction formula from one column into another column in the same data table for differentiation and subsequent visualization (graph builder).

Thanks alot :)

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Jul 27, 2017 5:06 AM
(1977 views)

Solution

This approach should work:

- You know the model so you can differentiate outside of JMP.
- You can use the Get Formula message to get the expression for the saved prediction formula.
- You can use the Arg() function to extract all the parameter estimates.
- You can use Substitute() to replace placeholders with the actual estimates in the derivative.
- Use the Set Formula() message with the new expression to set the new column.

Learn it once, use it forever!

2 REPLIES

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Jul 27, 2017 5:06 AM
(1978 views)

This approach should work:

- You know the model so you can differentiate outside of JMP.
- You can use the Get Formula message to get the expression for the saved prediction formula.
- You can use the Arg() function to extract all the parameter estimates.
- You can use Substitute() to replace placeholders with the actual estimates in the derivative.
- Use the Set Formula() message with the new expression to set the new column.

Learn it once, use it forever!

- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Get Direct Link
- Email to a Friend
- Report Inappropriate Content

Jul 27, 2017 5:23 AM
(985 views)