2

I am working on a project where we are comparing participants' spatial memories. We take them through a circuit, then later in the lab they draw the route they traveled. I want to be able to compare this drawing against the actual route of travel. There are 40 in total, and I have them digitized and georeferenced, along with the "key" polyline file. there are 3 segments in each polyline layer. I am hoping to arrive at some sort of score - perhaps a "degree of difference". I had hoped to find a Levenstein dissimilarity tool or the like, but haven't found anything. Feature Compare seems to not be able to do this.

closed as unclear what you're asking by PolyGeo Sep 17 '16 at 0:01

Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.

  • 2
    Could you add a screenshot of the key route + one of the drawn route? Buffering the key route and checking how much of the drawn route falls within the buffer might be an option. – GISGe Jul 12 '16 at 6:58
  • 1
    Just an idea, but you could do something similar to what is suggested here, but just script it to run through all 40. You'd then have distance statistics for each you could compare. Perhaps using the mean or range as your degree of difference. – Archaeojp Jul 13 '16 at 13:36
  • Hi Folks- I've been away from this site for awhile. I ended up just comparing the distances from actual waypoint to "memory" waypoint. This resulted in a Euclidean distance, but not really a score. I was hoping for a normalized scale of sorts that could do this. I'll post a few screencaps if people are interested. – wayfinder Apr 7 '17 at 17:52