Hello,
without the specific details, it is difficult to elaborate. However, please find an example of dashbard below, based of random values.
Here, we display the values in the bar grah, and the average as a line, over the values.
I hope this helps!
<dashboard>
<row>
<panel>
<chart>
<search>
<query>|makeresults count=20
| eval val=random() % 55
| eventstats avg(val) as average
| chart avg(val) as value,avg(average) as averrage by val</query>
<earliest>-24h@h</earliest>
<latest>now</latest>
</search>
<option name="charting.axisY2.enabled">0</option>
<option name="charting.axisY2.scale">linear</option>
<option name="charting.chart">column</option>
<option name="charting.chart.overlayFields">averrage</option>
<option name="charting.chart.stackMode">default</option>
<option name="charting.drilldown">none</option>
<option name="charting.layout.splitSeries">0</option>
<option name="charting.layout.splitSeries.allowIndependentYRanges">1</option>
<option name="refresh.display">progressbar</option>
</chart>
</panel>
</row>
</dashboard>
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