title: grafana/influxdb display ratio of two fields
body: <p>I have a timeseries measurement stored in influxdb where one column represents the sum and the other represents the count, I want to divide these two columns and plot their ratio in grafana. Something like what is show in the attached screenshot (somehow the points do not show). Additionally over the group by interval I would like to aggregate the max of those ratios</p>
  
  <p><a href="https://i.stack.imgur.com/495JS.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/495JS.jpg" alt="enter image description here"></a></p>