some minor tests on one dataset

Optimizing WiFi Parameter

	Remove Strong outliers during error-optimization:

		Does NOT seem to help at all!
		While wifi-opt is better, overwall result is worst

		0% out:		med(3.85227)	avg(5.04607)

		1% out:		med(3.84351)	avg(5.10242)

		3% out: 	med(3.84224)	avg(5.19669)
					med(3.84321)	avg(5.17647)

		5% out:		med(4.00438)	avg(5.28421)

		10% out: 	med(4.02074)	avg(5.43715)

WiFiProbability

	NormalDist:		med(3.86891)	avg(5.42092)
	Region:			med(3.90684)	avg(5.16647)


Step Length:

	70cm:			med(4.0231)		avg(5.52792)
	80cm:			med(4.01928)	avg(5.30433)
	85cm:			med(3.85938)	avg(5.10636)
	90cm:			med(3.87452)	avg(5.06212)


Map/NonMap

	NonMap:			med(3.7643)		avg(5.20786)
	with Map:		med(4.53366)	avg(6.66799)