Spotfire: Using Multiple Markings in a Data Function Without Needing Something Marked in Each
I think it would be a combination of visuals being set to OR instead of AND for markings (if you have a set of markings that are being set from others). 
Also are all the input parameters set to required parameter perhaps unchecking that option would still run the script. In the r script you may want to replace null values as well. 
Not too sure without some example.
In Spotfire I have a dashboard that uses both filtering (only one filtering scheme) and multiple markings to show the resulting data in a table.
I have created a data function which takes a column and outputs the data in the column after the active filtering scheme and markings are applied. 
However, this output column is only calculated if I have something marked in every marking. 
I want the output column to be calculated no matter how many of the markings are being used. Is there a way to do this? 
I was thinking I could use an IronPython script to edit the data function parameters for my input column to only check the boxes for markings that are actively being used. However, I can't find how to access those parameters with IronPython. 
Thanks!