How to get Daily average value of a field

[jenkinsta]

I have voltage data and want to get the average volts value per day for the last 7 days. 

This is where I left off from using bin to multiple timecharts and still nothing. 

source="/root/Scripts/VoltageLogger/Voltage.json" host="util" sourcetype="_json"
| timechart span=1d count by avg(voltage)

[bowesmana · Accepted solution]

This should work - you are not counting, but calculating average, so use avg(voltage) like this

source="/root/Scripts/VoltageLogger/Voltage.json" host="util" sourcetype="_json"
| timechart span=1d avg(voltage) as avg_voltage

[jenkinsta]

THanks, was close but long day and brain stopped working.