Documentation

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
  • Copy
  • Fill window

For more information, see Function type signatures.

Parameters

columns

(Required) List of two columns to operate on.

pearsonr

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

valueDst

Column to store the result in. Default is _value.

tables

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

Examples

Calculate the covariance between two columns

data
    |> covariance(columns: ["x", "y"])
  • Copy
  • Fill window

View example input and output


Was this page helpful?

Thank you for your feedback!


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.

Read more

New in InfluxDB 3.3

Key enhancements in InfluxDB 3.3 and the InfluxDB 3 Explorer 1.1.

See the Blog Post

InfluxDB 3.3 is now available for both Core and Enterprise, which introduces new managed plugins for the Processing Engine. This makes it easier to address common time series tasks with just a plugin. InfluxDB 3 Explorer 1.1 is also available, which includes InfluxDB plugin management and other new features.

For more information, check out: