For us:
1) 80% #Discarding outliers#Elbow on fraction of points in hulls2) #Chosen by the researcher#Maximum R-Squared We might also do:*Elbow on fraction of maximum hull area in hulls3====Elbow on fraction of points in hulls==== [[File:Elbowdataresult.png align=right]] The '''elbowcalc''' and '''elbowdata''' queries provide the data. '''elbowdata''' takes layer/finallayer (i.e., fraction unclustered, as the layer 1 is the all encompassing hull and final layer is the raw locations) Chosen , rounds it to two digits, and then calculates the average fraction of locations in hulls and the average hull area fraction of all encompassing hull area. The former gives a nice curve with an elbow (found by taking the researcher3second derivative and setting it equal to zero) Maximum R-Squaredat x=0.40237.
===Image Analysis===