Legend for the PCA figures:
===========================

cluster:		legend					
#1 low Sq (E)		Meidum spring green medium cross 	
#2 low DUO		OrangeRed cross 				
#3 low BE, low DUO	Mediumorchid medium plus 			
#4 high BE (A)		DarkOrange filled circle 		
#5 hi DUO  (B)		DeepPink filled rectangle 		
#6 Hi GAS (C)		SlateBlue1 empty circle			
#7 hi Sq (D)		YellowGreen rectangle empty		
#8 hi GAS, DUO		Gold plus 					

Visualization of the clusters from CAST 8 in the space of the first 
3 principal components (PCs) [Figure 2]:

a. Only clusters #1, 4, 5, 6, 7 are shown in the 5-cluster results:
cast8_5cluster_1.jpg, cast8_5cluster_2.jpg, and cast8_5cluster_3.jpg
are three different projections onto 2 dimensional space.

b. Similarly, cast8_1.jpg, cast8_2.jpg, and cast8_3.jpg are three
different projections of the visualization in the space of the first
3 PCs onto two dimensional space.