I've two lines registered in ES :
id - A - B - C
1 - 100 - 0 - 0
2 - 10 - 5 - 5
This is calculate the rate (A - B) / (B) :
1 => (100 - 0) / 100 = 1
2 => (10-5) / 10 = 0.5
With kibana, I can't calculate the average of this global rate...
If I use metric, I just got 0.75 ((1.00+0.5) /2) but the result I expect is 0.9545 explained like this :
(sum(A) - sum(B) ) / sum(A) = (110 - 5) / (110) = 0.9545
How can I get the result I expect with metrics ?
Thx a lot for the help !
You can use scritped fields to create a field that is computed at query time.
I already try, I've created one scripted field to calculate my rate but it always calculate line by line rate, not a total rate. I've always have 0.75 rate instead of my 0.9545 expected.
I've found this https://github.com/ommsolutions/kibana_ext_metrics_vis . With this plugin I can calculate my rate but I'had to change my kibana version (downgrade to 5.6.5) and the rate seems can't be displayed on other visualizations like chart
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