> For the complete documentation index, see [llms.txt](https://swatplus.gitbook.io/io-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://swatplus.gitbook.io/io-docs/introduction-1/landuse-and-management/landuse.lum/cal_grp.md).

# cal\_grp

User-defined calibration groups that can be used as conditions in [**calibration.cal**](/io-docs/introduction-1/calibration/calibration.cal.md).