I am an Archaeologist. I am interested in settlement dispersal and land use strategies in late antiquity and early middle ages.
Therefore, I want to analyze a certain terrain by: - least cost polygons or - terrain accessibility by time from a certain point.
I am using QGIS 2.18.6 ASTER DEM 30m (tiff) .CSV data for my settlement points.
GRASS and SAGA don´t want to operate. I calculated the slope as friction for r walk/ r drain.
I am surely not an expert and there might be some basic calculations missing. Maybe you can help me along or have another strategy how to draw my polygons.