Time Series Visual Builder - Inverted Y-Axis

Elastic Stack Kibana
1

Hey there,

so I'm trying to build an area chart in Kibana 6.8 that visualizes the document count of a specific filter.

My plan:
We have firewall logs and I want an area chart. One area is based on filtering specific source hosts. The other area consists of specific destination hosts. Now I want both of them in one chart, but one of them inverted.

I already found this tutorial https://www.elastic.co/blog/master-time-with-kibanas-new-time-series-visual-builder but the function doesn't seem to work if there is no calculation in the metric.

The aggregation "Calculation" is missing, so I guessed it has to be "Math". But taking the formular "params.test > 0 ? params.test* -1 : null" doesn't work on my end.

kibana
kibana1708×1054 82.5 KB

Am I doing something wrong here?

Thanks in advance!

2

Try just doing params.test* -1

I think the new TinyMath library introduced when the name changed from "Calculation" to "Math" handles undefined values for you.

3

Hey Bargs,

thanks for the answer but unfortunately it doesn't work.
Its not just the negative calculation won't work. I tried to multiplicate with 2 or anything else but the numbers wont change.

Edit:

Oh, it works now. I had to have "Count" first then the "Math" aggregation.

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4

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