Calculate the moving average

This page documents an earlier version of InfluxDB. InfluxDB v2.6 is the latest stable version. See the equivalent InfluxDB v2.6 documentation: Calculate the moving average.

Use the `movingAverage()` or `timedMovingAverage()` functions to return the moving average of data.

``````data
|> movingAverage(n: 5)

// OR

data
|> timedMovingAverage(every: 5m, period: 10m)
``````

movingAverage()

For each row in a table, `movingAverage()` returns the average of the current value and previous values where `n` is the total number of values used to calculate the average.

If `n = 3`:

Row #Calculation
1Insufficient number of rows
2Insufficient number of rows
3(Row1 + Row2 + Row3) / 3
4(Row2 + Row3 + Row4) / 3
5(Row3 + Row4 + Row5) / 3

Given the following input:

_time_value
2020-01-01T00:01:00Z1.0
2020-01-01T00:02:00Z1.2
2020-01-01T00:03:00Z1.8
2020-01-01T00:04:00Z0.9
2020-01-01T00:05:00Z1.4
2020-01-01T00:06:00Z2.0

The following would return:

``````|> movingAverage(n: 3)
``````
_time_value
2020-01-01T00:03:00Z1.33
2020-01-01T00:04:00Z1.30
2020-01-01T00:05:00Z1.36
2020-01-01T00:06:00Z1.43

timedMovingAverage()

For each row in a table, `timedMovingAverage()` returns the average of the current value and all row values in the previous `period` (duration). It returns moving averages at a frequency defined by the `every` parameter.

Each color in the diagram below represents a period of time used to calculate an average and the time a point representing the average is returned. If `every = 30m` and `period = 1h`:

Given the following input:

_time_value
2020-01-01T00:01:00Z1.0
2020-01-01T00:02:00Z1.2
2020-01-01T00:03:00Z1.8
2020-01-01T00:04:00Z0.9
2020-01-01T00:05:00Z1.4
2020-01-01T00:06:00Z2.0

The following would return:

``````|> timedMovingAverage(
every: 2m,
period: 4m
)
``````
_time_value
2020-01-01T00:02:00Z1.000
2020-01-01T00:04:00Z1.333
2020-01-01T00:06:00Z1.325
2020-01-01T00:06:00Z1.150

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Linux Package Signing Key Rotation

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For more information, see the Linux Package Signing Key Rotation blog post.

InfluxDB Cloud backed by InfluxDB IOx

All InfluxDB Cloud organizations created on or after January 31, 2023 are backed by the new InfluxDB IOx storage engine. Check the right column of your InfluxDB Cloud organization homepage to see which InfluxDB storage engine you’re using.

If powered by IOx, this is the correct documentation.

If powered by TSM, see the TSM-based InfluxDB Cloud documentation.

InfluxDB Cloud backed by InfluxDB TSM

All InfluxDB Cloud organizations created on or after January 31, 2023 are backed by the new InfluxDB IOx storage engine which enables nearly unlimited series cardinality and SQL query support. Check the right column of your InfluxDB Cloud organization homepage to see which InfluxDB storage engine you’re using.

If powered by TSM, this is the correct documentation.

If powered by IOx, see the IOx-based InfluxDB Cloud documentation.

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