CustomSampler variable can't handle function.

[elementx54]

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Issue Description

What did you expect to see happen?

I was using a <CustomSampler> to grab grid points for a model which had redundant variables. Usually I use a function which returns the same value as the other sampled variable, which has worked in the past with other samplers. Below is my input snippet example since I can't put up the actual input:

<CustomSampler name='ksam'>
  <Source class='DataObjects' type='PointSet'>actgrid</Source>
  <variable name='temp' />
  <variable name='same_temp'>
    <function>ret_temp</function>
  </variable>
</CustomSampler>

What did you see instead?

RAVEN told me that it could not find the "same_temp" variable in the source object, which is true. The source DataObject had time and temp in it. "same_temp" was suppose to be found from the function "ret_temp" which returned self.temp.

Do you have a suggested fix for the development team?

It seems like the CustomSampler does not have function variables since it doesn't require a distribution for the other variables.

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For Change Control Board: Issue Review

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• 1. Is it tagged with a type: defect or improvement?
• 2. Is it tagged with a priority: critical, normal or minor?
• 3. If it will impact requirements or requirements tests, is it tagged with requirements?
• 4. If it is a defect, can it cause wrong results for users? If so an email needs to be sent to the users.
• 5. Is a rationale provided? (Such as explaining why the improvement is needed or why current code is wrong.)

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For Change Control Board: Issue Closure

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• 1. If the issue is a defect, is the defect fixed?
• 2. If the issue is a defect, is the defect tested for in the regression test system? (If not explain why not.)
• 3. If the issue can impact users, has an email to the users group been written (the email should specify if the defect impacts stable or master)?
• 4. If the issue is a defect, does it impact the latest stable branch? If yes, is there any issue tagged with stable (create if needed)?
• 5. If the issue is being closed without a merge request, has an explanation of why it is being closed been provided?