current code and TeX. code fine?!?!?!

EvalCompareOpt2.h

@@ -317,6 +317,15 @@ public:
 			const MACAddress mac(ap->mac);
 			const std::vector<WiFiFingerprint> fps = getFingerprints(mac);
 
+			// ensure a certain number of fingerprints
+			// otherwise: ignore this AP as it can not be optimized!
+			if (fps.size() < 3) {
+				std::cout << "IGNORING " << mac.asString() << " due to insufficient fingerprints! using fixed -100 entry" << std::endl;
+				res.model.addAP(mac, Point3(0,0,0), -100, 0, 0, false);
+				//res.model.addAP(mac, pos_m, params[3], params[4], params[5], false);
+				continue;
+			}
+
 			// resulting error
 			auto errFunc = [&] (const Point3 pos_m, const float txp, const float exp, const float waf) -> K::Statistics<float> {
 				WiFiModelLogDistCeiling model(map);									// new, empty model for this AP