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I want to import my database tables into Leapfrog, and view the “Missing  Intervals”.


You must create a filter and view only the missing ranges by building a  “Category Calculation” in your Assay table.


1. Right click on your database > Calculations.

2. Click on Create a new item:

3.  Click on Category Calculation:


4. Create a filter to view the missing ranges :

4.1 click on If (on Statements tab):


4.2 Enter the expression below :




5. Select the option Missing_Value:


The new category Calculation will be available in your database and you will be able to visualize the following information:



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