# Working with Phenotype Data

#### Topics of this section:

* [Variant PheWas](https://docs.finngen.fi/working-in-the-sandbox/working-with-genotype-data/variant-phewas)
* [How to select controls for your cases](https://docs.finngen.fi/working-in-the-sandbox/working-with-phenotype-data/how-to-select-controls-for-your-cases)
* [Using the R libraries to look at Phenotype data](https://docs.finngen.fi/working-in-the-sandbox/working-with-phenotype-data/using-the-r-libraries-to-look-at-phenotype-data)
* [How to check case counts from the data](https://docs.finngen.fi/working-in-the-sandbox/working-with-phenotype-data/how-to-check-case-counts-from-the-data)
* [Creating your own user-defined endpoint](https://docs.finngen.fi/working-in-the-sandbox/working-with-phenotype-data/creating-your-own-user-defined-endpoint)