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Table 5 Results of grey analysis

From: Parametric optimization of corrosion and wear of electroless Ni-P-Cu coating using grey relational coefficient coupled with weighted principal component analysis

Experiment number Normalized value Δ value Grey coefficient
E corr I corr Wear E corr I corr Wear E corr I corr Wear
1 0.67010 0.99454 0.30323 0.32990 0.00546 0.69677 0.60248 0.98920 0.41779
2 0.99532 0.93292 0.00000 0.00468 0.06708 1.00000 0.99074 0.88171 0.33333
3 0.62719 0.53598 0.59771 0.37281 0.46402 0.40229 0.57286 0.51866 0.55415
4 1.00000 1.00000 0.64136 0.00000 0.00000 0.35864 1.00000 1.00000 0.58231
5 0.80205 0.94456 0.88526 0.19795 0.05544 0.11474 0.71639 0.90019 0.81335
6 0.20197 0.12718 0.53929 0.79803 0.87282 0.46071 0.38520 0.36421 0.52045
7 0.45186 0.90067 0.24496 0.54814 0.09933 0.75504 0.47703 0.83426 0.39839
8 0.93331 0.94014 0.42239 0.06669 0.05986 0.57761 0.88231 0.89308 0.46399
9 0.49731 0.88422 0.68487 0.50269 0.11578 0.31513 0.49866 0.81198 0.61340
10 0.04797 0.82944 0.66924 0.95203 0.17056 0.33076 0.34434 0.74564 0.60186
11 0.45059 0.91159 0.51475 0.54941 0.08841 0.48525 0.47646 0.84975 0.50748
12 0.11779 0.56613 0.33784 0.88221 0.43387 0.66216 0.36174 0.53540 0.43023
13 0.68993 0.75375 0.47323 0.31007 0.24625 0.52677 0.61723 0.67001 0.48696
14 0.42794 0.92743 1.00000 0.57206 0.07257 0.00000 0.46639 0.87326 1.00000
15 0.38749 0.48622 0.33873 0.61251 0.51378 0.66127 0.44943 0.49320 0.43056
16 0.45297 0.98700 0.02652 0.54703 0.01300 0.97348 0.47754 0.97467 0.33933
17 0.19838 0.74086 0.04850 0.80162 0.25914 0.95150 0.38414 0.65864 0.34447
18 0.37908 0.49917 0.48712 0.62092 0.50083 0.51288 0.44606 0.49959 0.49364
19 0.06869 0.49816 0.60544 0.93131 0.50184 0.39456 0.34933 0.49908 0.55893
20 0.00000 0.62122 0.99743 1.00000 0.37878 0.00257 0.33333 0.56897 0.99490
21 0.44486 0.17952 0.05149 0.55514 0.82048 0.94851 0.47387 0.37865 0.34518
22 0.11404 0.61936 0.32570 0.88596 0.38064 0.67430 0.36076 0.56777 0.42579
23 0.31534 0.00000 0.36487 0.68466 1.00000 0.63513 0.42206 0.33333 0.44048
24 0.10409 0.93426 0.50457 0.89591 0.06574 0.49543 0.35819 0.88380 0.50229
25 0.21224 0.47635 0.39813 0.78776 0.52365 0.60187 0.38827 0.48845 0.45377
26 0.36468 0.19566 0.52374 0.63532 0.80434 0.47626 0.44040 0.38334 0.51216
27 0.29855 0.77647 0.64940 0.70145 0.22353 0.35060 0.41617 0.69105 0.58782