M0 Winter Spring Summer Autumn Combined -2ln(Λ)    d.f. χ2 p-value 
0 -22.0545 -22.0545 -23.8924 -22.0545 -90.0560      
1 -19.9543 -21.6284 -22.1090 -21.3295 -89.1455 8.2486 6 0.2205 
2 -19.5298 -19.5591 -18.7057 -20.6901 -86.5384 16.1075 12 0.1864 
3 -18.9205 -19.3480 -15.0076 -20.5220 -83.9955 20.3948 18 0.3110 
4 -17.3523 -18.3262 -14.5950 -18.0935 -83.5365 30.3392 24 0.1738 
5 -16.9660 -17.7181 -11.9490 -17.0136 -83.0619 38.8305 30 0.1296 
6 -16.9440 -16.5327 -11.7001 -16.5227 -82.8683 42.3377 36 0.2163 
Table 5: NNTS homogeneity tests: Results for the wind directions dataset (Mardia and Jupp, 2000, pp. 137[21]).