Mean, Min, Max - Add field from calculation flawed

Grafana PostgreSQL
1

Hi,

when I add the transformation “Add field from calculation” to a datasource it displays a respective graph on the time series on top of the original data. I don’t see the point in that and I’m not sure if I’am using that correctly. I actually just want to have the mean, min and max values shown over the chosen time interval. Any ideas how to handle that correctly?

I’m using a Postgres DB. The time series uses a table in the same dashboard as datasource.

grafana_min_max_mean
grafana_min_max_mean2029×1171 181 KB

2

Use legend, not transformation. For example:

obrázok
obrázok3444×1171 391 KB

3

That was simple thanks a lot!

Is it also possible to have those values shown as lines in the graph?

4

No. Write additional panel queries to calculate min/max/mean timeseries (not just scalars, as you have in the legend), so you will have additional timeseries and then they can be min/max/mean “lines” in the graph.

5

Alright, thanks a lot for your response!