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Docs: Add dashboard variables content (#101733)

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* Added variables section

* Updated transformations file and Makefile

* Finished Dashboard variables in transformations section
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Isabel Matwawana
2025-03-07 09:55:39 -05:00
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docs/sources/panels-visualizations/query-transform-data/transform-data/index.md
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@@ -104,6 +104,16 @@ When there are multiple transformations, Grafana applies them in the order they
The order in which Grafana applies transformations directly impacts the results. For example, if you use a Reduce transformation to condense all the results of one column into a single value, then you can only apply transformations to that single value.
## Dashboard variables in transformations
All text input fields in transformations accept [variable syntax](ref:dashboard-variable):
{{< figure src="/media/docs/grafana/panels-visualizations/screenshot-transformation-variables-v11.6.png" alt="Transformation with a mock variable in a text field" >}}
When you use dashboard variables in transformations, the variables are automatically interpolated before the transformations are applied to the data.
For an example, refer to [Use a dashboard variable](#use-a-dashboard-variable) in the **Filter fields by name** transformation.
## Add a transformation function to data
The following steps guide you in adding a transformation to data. This documentation does not include steps for each type of transformation. For a complete list of transformations, refer to [Transformation functions](#transformation-functions).