Scenario analysis
Frank Grimsey Jones
There is a feature for running scenario analysis but it is not working in the model I'm using, probably because of its size. What's the best way to run a series of scenario anlyses and record the results?
Also, can I conduct scenario analyses that impact data input tables and what's the best way to automate this?
Comments
Frank
The best way would be to break it down into a smaller number of scenarios and just run them. The number of calculations done is indicated when you set up the scenario analysis, so this can give you an indication.
In regards to the second part of the question about data input tables, I am not sure I understand.
You can email us directly using the support email address and we can address it one-on-one with you via support as it likely requires more details about the model?
Thanks, Belinda
You may be able to run the scenarios using a sequence of stored analyses.
https://www.treeage.com/help/Content/32-Stored-Analysis/0-Intro-Stored-Analysis.htm
However, to change the scenarios, you will need an automated mechanism to change the values in the model.
You might place the elements that need to change in variable arrays, so changing the index sent to the array(s) moves down the list of values within that array.
Within a sequence, you could change the index from one to the next set of values for each scenario.
If you only need the final values from these scenario analyses, and not all the secondary reporting, you could do this with a "fake PSA" where you cycle through the scenarios using the keyword _sample. Be sure not to sample any of th distributions (tree prefs) if this is not actually PSA analyses.
Feel free to ask followup questions through your open support ticket.
Andrew
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