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  • Overview
  • Adding a Default Assumption
  1. Variables

Default Assumptions

How to use a Default Assumption to replace missing Assumptions

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Last updated 11 months ago

Overview

You do not have to specify every of an Assumption . For instance, you might have a Variable called One-off costs, as in the screenshot below. There are 20 periods in our , but we only want to enter Assumptions for two of those periods, March and December 2025.

In this case, we can use a Default Assumption to provide a value for the other periods. The screenshot below shows that we have only selected 2 Assumptions in the (1), but no warning is shown because we have added a Default Assumption that provides a value of 0 for any period without an Assumption.

Adding a Default Assumption

To add a Default Assumption, perform the following steps, as illustrated in the screenshots below.

  • In the Variable dialog, navigate to the Default assumption step (1) (this will only be shown if Assumption Variable type is selected in the Name and Setup step

  • If your Default Assumption does not already exist, ensure that the Item statuses table has its only cell selected (2)

  • Enter any details and the value of the Assumption, click Finish, and the Assumption will be selected

Click the New button (3), which will open an (4) in which to create the Default Assumption

Assumptions dialog
Assumption
Variable
Model
Time Segment
Variable using Default Assumption
Adding a Default Assumption