timeWeightedAvg() function
The timeWeightedAvg() function outputs the time-weighted average of non-null records
in a table as a float.
Time is weighted using the linearly interpolated integral of values in the table.
Function type: Aggregate
Output data type: Float
timeWeightedAvg(unit: "_value")
Parameters
unit
Time duration used when computing the time-weighted average.
Data type: Duration
Examples
from(bucket: "example-bucket")
|> range(start: -5m)
|> filter(fn: (r) =>
r._measurement == "cpu" and
r._field == "usage_system"
)
|> timeWeightedAvg(unit: 1m)
Function definition
timeWeightedAvg = (tables=<-, unit) => tables
|> integral(
unit: unit,
interpolate: "linear"
)
|> map(fn: (r) => ({
r with
_value: (r._value * float(v: uint(v: unit))) / float(v: int(v: r._stop) - int(v: r._start))
}))
Support and feedback
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InfluxDB Cloud and InfluxDB Enterprise customers can contact InfluxData Support.