interpolate.linear() function

The interpolate.linear function inserts rows at regular intervals using linear interpolation to determine values for inserted rows.

import "interpolate"

interpolate.linear(every: 1m)

Function requirements

• Input data must have _time and _value columns.
• _value column must be of type float.
• All columns other than _time and _value must be part of the group key.

Parameters

every

Duration of time between interpolated points.

tables

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

Examples

Interpolate missing data by day

import "interpolate"

data
  |> interpolate.linear(every: 1d)