grafana/docs/sources/panels/format-data/map-a-special-value.md

aliases, title, weight

aliases	title	weight
/docs/grafana/latest/panels/format-data/map-a-special-value/ /docs/sources/panels/format-data/map-a-special-value/	Map a special value	50

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]({{< relref "../working-with-panels/add-panel/" >}}).

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.