The type of object returned depends on the intern argument passed to the rsaga.geoprocessor(). For intern=FALSE it is a numerical error code (0: success), or otherwise (default) a character vector with the module's console output.
Arguments
in.dem
input: digital elevation model (DEM) as SAGA grid file (default file extension: .sgrd)
out.sinkroute
output: sink route grid file: non-sinks obtain a value of 0, sinks are assigned an integer between 0 and 8 indicating the direction to which flow from this sink should be routed
threshold
logical: use a threshold value?
thrsheight
numeric: threshold value (default: 100)
...
optional arguments to be passed to rsaga.geoprocessor(), including the env RSAGA geoprocessing environment
Author
Alexander Brenning (R interface), Olaf Conrad (SAGA module)