experimental.alignTime() function

experimental.alignTime() shifts time values in input tables to all start at a common start time.

Function type signature

(<-tables: stream[B], ?alignTo: A) => stream[C] where B: Record, C: Record

Parameters

alignTo

Time to align tables to. Default is 1970-01-01T00:00:00Z.

tables

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

Examples

Compare month-over-month values

1. Window data by calendar month creating two separate tables (one for January and one for February).
2. Align tables to 2021-01-01T00:00:00Z.

Each output table represents data from a calendar month. When visualized, data is still grouped by month, but timestamps are aligned to a common start time and values can be compared by time.

import "experimental"

data
    |> window(every: 1mo)
    |> experimental.alignTime(alignTo: 2021-01-01T00:00:00Z)