covariance() function

covariance() computes the covariance between two columns.

Function type signature
(<-tables: stream[A], columns: [string], ?pearsonr: bool, ?valueDst: string) => stream[B] where A: Record, B: Record

For more information, see Function type signatures.



(Required) List of two columns to operate on.


Normalize results to the Pearson R coefficient. Default is false.


Column to store the result in. Default is _value.


Input data. Default is piped-forward data (<-).


Calculate the covariance between two columns

    |> covariance(columns: ["x", "y"])

View example input and output

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The future of Flux

Flux is going into maintenance mode. You can continue using it as you currently are without any changes to your code.

Flux is going into maintenance mode and will not be supported in InfluxDB 3.0. This was a decision based on the broad demand for SQL and the continued growth and adoption of InfluxQL. We are continuing to support Flux for users in 1.x and 2.x so you can continue using it with no changes to your code. If you are interested in transitioning to InfluxDB 3.0 and want to future-proof your code, we suggest using InfluxQL.

For information about the future of Flux, see the following: