Prediction of Compressive Strength of Concrete and Rock Using an Elementary Instance-Based Learning Algorithm

Table 5

Proportion of variance of the first three principal components for each dataset.

Dataset	PC1	PC2	PC3
1	0.4489	0.1810	0.1314
2	0.3767	0.2165	0.1834
3	0.5417	0.2103	0.1685
4	0.7799	0.1171	0.0470
5	0.7363	0.1005	0.0964
6	0.8096	0.1009	0.0470