# Create a sparkline chart

Sparkline charts require comma-separated values (CSV) for input. If your data is not in CSV format, you must create a Pentaho Data Integration transformation to put commas between each data point, or you can manually insert commas between your data points.

Perform the following steps to add a sparkline chart to your report:

1. Drag and drop a **Sparkline Pie**, **Sparkline Bar**, or **Sparkline Line** element into a layout band.
2. Using the resize handles, change the size of the chart to fit your specifications.
3. Click the round green **+** icon in the **Value** row.

   A formula field will appear.
4. In the formula field, select the function that formats your sparkline data, or type in comma-separated values by hand directly, then click **Close**.
5. Click **Preview** to verify that your chart appears as intended.


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