Category Archives: Tips&Tricks

Calculating dppm

In my last post I introduced the idea of using the JSL script editor as a simple command line calculator; and prior to that I discussed how process capability indices (Cp,Cpk) are a convenient shorthand notation but suffer from lack of transparency.  Today I will bring these two themes together by showing how I can use the JSL script editor to calculate defective parts per million (dppm) for a given set of capability indices Cp and Cpk.

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The Power of Journals

If you have ever been to a JMP Discovery Summit or perhaps a JMP user group meeting you will no doubt have come across journal files.  The first time you create one can be an unnerving experience since a new journal is simply a blank window.  But that is their beauty: they are a blank canvass onto which you can save your JMP output.  But more importantly they are a place to capture your thoughts.

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Scripting Table Subsets

The best way to script table manipulation tasks such as joins and subsets is to first perform the task interactively and then make a copy of the source JSL that is automatically generated by JMP.  In many instances this code is sufficient, but sometimes you need to make the code more general, and that’s where things can get tricky.

In this post I will take you through the process of transforming the JMP-generated code into a more flexible piece of JSL.

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