Table 1.

Weights (w_j) of the variables j in the k-mean clustering.

Variable j	Weight wj
Cos(${\bar{\mathrm{\Theta }}}_F$)	0.6
Sin(${\bar{\mathrm{\Theta }}}_F$)	0.6
rF	0.1
Cos(${\bar{\mathrm{\Theta }}}_F$)	0.4
Sin(${\bar{\mathrm{\Theta }}}_F$)	0.4
rP	0.1
Xcor	0.2
Ycor	0.4