I am working on stream network delineation with GRASS 7 in RQGIS, the 'r.stream.extract' algorithm in particular. However, the algorithm returns erroneous result when the Advanced parameter, "v.out.ogr output type" has not been defined as "line". The advanced parameters setting is accessible in the QGIS GUI ver 2.14.17 (as shown below)
but couldn't be found as argument in RQGIS.
I wonder if there is anything that I have missed. Is there any workaround to solve this?