nushell/docs/commands/dfr_melt.md
Justin Ma c0a1d18e3d
update #4455, regenerate commands' docs and update make_docs script (#4586)
* feat: update #4455, regenerate commands' docs

* chore: update make_docs script
2022-02-21 11:26:00 -06:00

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Markdown

---
title: dfr melt
layout: command
version: 0.59.0
---
Unpivot a DataFrame from wide to long format
## Signature
```> dfr melt --columns --values --variable-name --value-name```
## Parameters
- `--columns {table}`: column names for melting
- `--values {table}`: column names used as value columns
- `--variable-name {string}`: optional name for variable column
- `--value-name {string}`: optional name for value column
## Examples
melt dataframe
```shell
> [[a b c d]; [x 1 4 a] [y 2 5 b] [z 3 6 c]] | dfr to-df | dfr melt -c [b c] -v [a d]
```