Variables

Standard error (P-value) of models

Pca

Stepwise regression

All variables

X1

-

0.00000402 (0.0380)

0.0000053 (0.018)

X2

0.04 (0.56)

-

0.07 (0.24)

X3

-

-

0.04 (0.11)

X4

0.14 (0.35)

-

0.16 (0.38)

X5

0.06 (0.80)

-

0.06 (0.72)

X6

0.02 (0.00)

0.02 (0.00)

0.02 (0.01)

Count R2

0.70

0.63

0.53