generate.from() function

generate.from() generates data using the provided parameter values.

Function type signature

(count: int, fn: (n: int) => int, start: A, stop: A) => stream[{_value: int, _time: time, _stop: time, _start: time}] where A: Timeable

Parameters

count

(Required) Number of rows to generate.

fn

(Required) Function used to generate values.

The function takes an n parameter that represents the row index, operates on n, and then returns an integer value. Rows use zero-based indexing.

start

(Required) Beginning of the time range to generate values in.

stop

(Required) End of the time range to generate values in.

Examples

Generate sample data

import "generate"

generate.from(
    count: 6,
    fn: (n) => (n + 1) * (n + 2),
    start: 2021-01-01T00:00:00Z,
    stop: 2021-01-02T00:00:00Z,
)