Table 2 The load matrix, eigenvalue, and contribution rate of principal components

From: Composition and microstructure of Yuan Dynasty Jun glazed stoneware from Yanjialiang site, Inner Mongolia, China

Index

Principal component l

Principal component 2

Principal component 3

Al2O3

−0.585

0.057

−0.153

SiO2

0.563

−0.234

0.086

K2O

0.525

0.118

0.160

CaO

−0.132

0.349

0.757

TiO2

0.200

0.420

−0.609

Fe2O3

0.082

0.793

0.002

Eigen value

2.75

1.18

1.09

Variance contribution rate

45.78%

19.68%

18.12%

Cumulative contribution rate

45.78%

65.46%

83.58%

Back to article page