Optimization of Multiple Roughness Characteristics of Chemically Deposited Ni-P-W Coating Using Weighted Principal Component Analysis

Table 6

Eigenvalue, explained variation, and eigenvector for the present study.

Principal component	Eigenvalue	Proportion of explained variation	Eigenvector
First	2.569931	0.51398	[−0.564327,−0.576643,−0.307783,−0.331322,0.380149]
Second	0.974719	0.19495	[−0.303541,−0.335006,−0.212192,0.677279,−0.540279]
Third	0.885494	0.17709	[0.281791,0.155927,−0.850684,−0.295820,−0.291732]
Fourth	0.561881	0.11237	[0.177131,0.136357,−0.357452,0.586516,0.691562]
Fifth	0.007975	0.00159	[−0.691821,0.715784,−0.093856,0.002778,−0.014805]