Editing Driver Time Series

This article explains how to edit driver time series in Model Reef.

You will learn:

Driver time series are core assumptions that many variables depend on, so edits should be deliberate and traceable.

You edit driver values in:

The Driver Editor grid for that driver.
Sometimes in the Data Library, if you are editing an entry that is treated as a driver.

If the series is read only, it may be fully controlled by imports or restricted logic.

To change a single period:

The driver updates and all linked variables will recalculate automatically.

You can adjust ranges by:

This is useful when you have a planned path for prices, volumes or growth that you want to drop in as a block.

If the driver is partly or fully imported:

If the driver is controlled by a preset:

Some presets allow manual overrides of the resulting series.
Others lock the series, requiring changes at the preset parameter level instead.

The editor will indicate which cells are editable.

Because driver changes can affect many variables:

Use notes to explain significant edits or structural changes in the time series.
Tag important drivers so they appear in review workflows.
Avoid making major changes without recording why they were made.

This helps reviewers and future you understand how the model evolved.

Last updated 6 months ago

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