---
title: skew() function
description: skew() returns the skew of non-null records in each input table as a float.
url: https://docs.influxdata.com/flux/v0/stdlib/universe/skew/
estimated_tokens: 1046
product: Flux
version: v0
---

# skew() function

-   Flux 0.7.0+
-   View InfluxDB support

`skew()` returns the skew of non-null records in each input table as a float.

##### Function type signature

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

For more information, see [Function type signatures](/flux/v0/function-type-signatures/).

## Parameters

### column

Column to operate on. Default is `_value`.

### tables

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

## Examples

### Return the skew of values

```js
import "sampledata"

sampledata.int()
    |> skew()
```

[](#view-example-input-and-output)

View example input and output

#### 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

| *tag | _value |
| --- | --- |
| t1 | -0.22375476930534782 |

| *tag | _value |
| --- | --- |
| t2 | -0.01972080701262574 |

#### Related

-   [experimental.skew() function](/flux/v0/stdlib/experimental/skew/)

[transformations](/flux/v0/tags/transformations/) [aggregates](/flux/v0/tags/aggregates/)