Flux interpolate package
The interpolate package provides functions that insert rows for missing
data at regular intervals and estimate values using different interpolation methods.
Import the interpolate package:
import "interpolate"
Functions
interpolate.linear() function
The interpolate.linear function inserts rows at regular intervals using linear interpolation to determine values for inserted rows.
import "interpolate"
data
|> interpolate.linear(every: 1d)
Input:
| _time | _value |
|---|---|
| 2021-01-01T00:00:00Z | 10.0 |
| 2021-01-02T00:00:00Z | 20.0 |
| 2021-01-04T00:00:00Z | 40.0 |
| 2021-01-05T00:00:00Z | 50.0 |
| 2021-01-08T00:00:00Z | 80.0 |
| 2021-01-09T00:00:00Z | 90.0 |
Output:
| _time | _value |
|---|---|
| 2021-01-01T00:00:00Z | 10.0 |
| 2021-01-02T00:00:00Z | 20.0 |
| 2021-01-04T00:00:00Z | 40.0 |
| 2021-01-05T00:00:00Z | 50.0 |
| 2021-01-06T00:00:00Z | 60.0 |
| 2021-01-07T00:00:00Z | 70.0 |
| 2021-01-08T00:00:00Z | 80.0 |
| 2021-01-09T00:00:00Z | 90.0 |
Support and feedback
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