# Variables in selections

Selections sit at the heart of FastStats analysis. You create selections using variables located in your [System](<https://help.apteco.com/en/faststats/getting-started/interface/index.md>) explorer window.

For information on working with different variable types, see:

- [Selector variables](<https://help.apteco.com/en/faststats/analysis/selections/using-variables-in-selections/selector-variables/index.md>)
- [Zoom or summary variables](<https://help.apteco.com/en/faststats/analysis/selections/using-variables-in-selections/zoom-level-selector/index.md>)
- [Text variables](<https://help.apteco.com/en/faststats/analysis/selections/using-variables-in-selections/text-variables/index.md>)
- [Numeric variables](<https://help.apteco.com/en/faststats/analysis/selections/using-variables-in-selections/value-variables/index.md>)

  - [Numeric banding](<https://help.apteco.com/en/faststats/analysis/selections/numeric-banding/index.md>)
- [Date variables](<https://help.apteco.com/en/faststats/analysis/selections/using-variables-in-selections/date-variables/index.md>)
- [DateTime variables](<https://help.apteco.com/en/faststats/analysis/selections/using-variables-in-selections/datetime-variables/index.md>)

Related topic: [Using expressions in selections](<https://help.apteco.com/en/faststats/analysis/selections/using-expressions-in-selections/index.md>)