The result of the Kaiser Meyer Olkin (KMO) measure of sampling adequacy and Bartlett's sphericity test during the PCA gave a value 0.613. The eigenvalue greater than 1 was considered for the number of components that study the variation and resulted in three components from nine variables which contributes 65.71% of the total variance. According to factor loading, PC1, PC2, and PC3 explained 34.15, 19.71, and 11.84% of the total variance, respectively (Table 3).

Table 3

Rotated component matrix

Rotated component matrix
Component
Attributes123
Bi 0.318 0.841 0.171 
Ci 0.528 0.754 0.086 
0.931 0.220 0.118 
Ksp –0.917 –0.068 –0.129 
Moisture –0.258 0.118 –0.173 
Bulk 0.092 –0.438 0.582 
Sand –0.087 –0.115 –0.703 
Clay 0.181 0.096 0.805 
SOM –0.292 0.693 –0.096 
Eigenvalue 3.074 1.774 1.066 
% of variance 34.158 19.708 11.843 
Cumulative % 34.158 53.866 65.709 
Rotated component matrix
Component
Attributes123
Bi 0.318 0.841 0.171 
Ci 0.528 0.754 0.086 
0.931 0.220 0.118 
Ksp –0.917 –0.068 –0.129 
Moisture –0.258 0.118 –0.173 
Bulk 0.092 –0.438 0.582 
Sand –0.087 –0.115 –0.703 
Clay 0.181 0.096 0.805 
SOM –0.292 0.693 –0.096 
Eigenvalue 3.074 1.774 1.066 
% of variance 34.158 19.708 11.843 
Cumulative % 34.158 53.866 65.709 

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