Docs for ‘QGIS testing’. Visit http://docs.qgis.org/2.18 for QGIS 2.18 docs and translations.

SAGA algorithm provider

SAGA (System for Automated Geoscientific Analyses) is a free, hybrid, cross-platform GIS software. SAGA provides many geoscientific methods which are bundled in so-called module libraries.

Note

Please remember that Processing contains only the interface description, so you need to install SAGA by yourself and configure Processing properly.