dem                     Digital elevation model (DEM) of the Mongn
                        study area.
find_algorithms         Find and list available QGIS algorithms
get_args                Automatically retrieve GIS function arguments
get_args_man            Get GIS arguments and respective default values
get_options             Get options of parameters for a specific GIS
                        option
get_usage               Get usage of a specific QGIS geoalgorithm
ndvi                    Normalized difference vegetation index for the
                        Mongn study area.
open_help               Access the QGIS/GRASS online help for a
                        specific (Q)GIS geoalgorihm
qgis_session_info       QGIS session info
random_points           Random points.
run_qgis                Interface to QGIS commands
set_env                 Retrieve the environment settings to run QGIS
                        from within R
