docs-v2/content/flux/v0/stdlib/universe/min.md

title	description	menu	weight	flux/v0/tags	introduced
min() function	`min()` returns the row with the minimum value in a specified column from each input table.	flux_v0_ref name parent identifier min universe universe/min	101	transformations selectors	0.7.0

min() returns the row with the minimum value in a specified column from each input table.

Note: min() drops empty tables.

Function type signature

(<-tables: stream[A], ?column: string) => stream[A] where A: Record

{{% caption %}} For more information, see Function type signatures. {{% /caption %}}

Parameters

column

Column to return minimum values from. Default is _value.

tables

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

Examples

Return the row with the minimum value

import "sampledata"

sampledata.int()
    |> min()

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Input data

_time	_value	*tag
2021-01-01T00:00:00Z	-2	t1
2021-01-01T00:00:10Z	10	t1
2021-01-01T00:00:20Z	7	t1
2021-01-01T00:00:30Z	17	t1
2021-01-01T00:00:40Z	15	t1
2021-01-01T00:00:50Z	4	t1

_time	_value	*tag
2021-01-01T00:00:00Z	19	t2
2021-01-01T00:00:10Z	4	t2
2021-01-01T00:00:20Z	-3	t2
2021-01-01T00:00:30Z	19	t2
2021-01-01T00:00:40Z	13	t2
2021-01-01T00:00:50Z	1	t2

Output data

_time	_value	*tag
2021-01-01T00:00:00Z	-2	t1

_time	_value	*tag
2021-01-01T00:00:20Z	-3	t2

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