host="ESX" NOT (host="GA*" OR host="WA*") | timechart span=1m eval(round(avg(Temperatures{}.CurrentReading),2)) by host
Trying to get just 2 decimal places on the "Temperatures{}.CurrentReading" but getting expression is malformed.
Sorry, I'm a Splunk newbie and I"m trying to read on the webs and piece together what makes sense.
Try this
host="ESX" NOT (host="GA*" OR host="WA*") | timechart span=1m avg(Temperatures{}.CurrentReading) by host
| foreach * [| eval "<<FIELD>>"=round('<<FIELD>>',2)]