41 
2nd P.C. 
1st P.C. 
3rd P.C. 
(l) 
(2) 
Figure 8 Distribution of clusters in three dimensional principal component space 
(1) Projected distribution on lst-2nd PC plane from positive 3rd PC 
(2) Projected distribution on 2nd-3rd PC plane from negative 1st PC 
Figure 13 Wilson’s land cover data. 
'Irrigated crop' 
Figure 14 Level sliced Euclid distance image 
between 1983 and 1987