@DPOIRE You can certainly calculate as many values in timechart as you like and round them as needed, although rounding after a timechart+split_by needs to use "foreach" because the field names are named by the split field (in your case 'host') | timechart span=5m avg(Delay) max(Delay) by host
| foreach * [ eval "<<FIELD>>"=round('<<FIELD>>', 3) ] Note that the left hand side of eval uses double quotes and the right hand side, single, round the <<FIELD>>. That is to take care of any potential odd characters in the host results.
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