---
title: "Feature engineering 101"
sidebarTitle: "Feature Engineering 101"
description: "Add derived feature columns to an existing table."
---

Adds new derived features to a table, the pattern documented under
[data evolution](/feature-engineering/data-evolution) and
[computed columns](/feature-engineering/add-computed-column).

<Note>
This example is a runnable notebook in the
[vectordb-recipes](https://github.com/lancedb/vectordb-recipes) repository rather than a page here.
</Note>

<CardGroup cols={2}>
  <Card title="Open in Colab" icon="google" href="https://colab.research.google.com/github/lancedb/vectordb-recipes/blob/main/tutorials/feature-engineering/feature-engineering-101.ipynb">
    Run it end to end in the browser.
  </Card>
  <Card title="View on GitHub" icon="github" href="https://github.com/lancedb/vectordb-recipes/tree/main/tutorials/feature-engineering/feature-engineering-101.ipynb">
    Read the source.
  </Card>
</CardGroup>