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Documentation Grafana documentation Panels Format data using value mapping Map a special value

Map a special value

Map a special value when you want to format uncommon, boolean, or empty values.

Before you begin

• Add a panel to a dashboard.

To map a special value:

1. Edit the panel for which you want to map a special value.
2. In panel display options, locate the Value mappings section and click Add value mappings.
3. Click Add a new mapping and then select Special.
4. Select the special value for Grafana to match. Options include:
   • Null
   • NaN (Not a Number)
   • Null + NaN
   • True
   • False
   • Empty
5. (Optional) Enter display text.
6. (Optional) Set the color.
7. Click Update to save the value mapping.