I know there are some topics talking about this, but I still don't understand.
I want to create a metric in Kibana to contain the following calculation: (sum(a) + sum(b)) / sum(c), where a, b and c are another metrics.
I read some topics and documentation like https://www.elastic.co/guide/en/elasticsearch/reference/current/search-aggregations-metrics-weight-avg-aggregation.html
But I still don't know how to apply this in Kibaba.
Can anyone help me with this issue?