> For the complete documentation index, see [llms.txt](https://docs.rasgoml.com/rasgo-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.rasgoml.com/rasgo-docs/rasgo-0.1/all-transforms/lead.md).

# Lead

Lead shifts your features on a partition index, creating a look-forward feature offset by an amount. Lead supports generating multiple leads in one transform by generating each unique combination of columns and amounts from your inputs.

## Parameters

| Name      | Type         | Description                                         | Is Optional |
| --------- | ------------ | --------------------------------------------------- | ----------- |
| columns   | column\_list | names of column(s) you want to lead                 |             |
| amounts   | int\_list    | Magnitude of amounts you want to use for the lead.  |             |
| partition | column\_list | name of column(s) to partition by for the lead      | True        |
| order\_by | column\_list | name of column(s) to order by in the final data set | True        |

## Example

```python
ds = rasgo.get.dataset(id)

ds2 = ds.lead(columns=['OPEN', 'CLOSE'], amounts=[1,2,3,7], order_by=['DATE, 'TICKER'], partition=['TICKER'])
ds2.preview()

```

## Source Code

{% embed url="<https://github.com/rasgointelligence/RasgoTransforms/blob/main/rasgotransforms/rasgotransforms/transforms/lead/lead.sql>" %}


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