netdata/web/api/queries/average

Average or Mean

This query is available as average and mean.

An average is a single number taken as representative of a list of numbers.

It is calculated as:

average = sum(numbers) / count(numbers)

how to use

Use it in alerts like this:

 alarm: my_alert
    on: my_chart
lookup: average -1m unaligned of my_dimension
  warn: $this > 1000

average does not change the units. For example, if the chart units is requests/sec, the result will be again expressed in the same units.

It can also be used in APIs and badges as &group=average in the URL.

Examples

Examining last 1 minute successful web server responses:

• 
• 
• 

References

• https://en.wikipedia.org/wiki/Average.