covar:
                 YearsCodeS  YearsCodeProS  PreviousSalaryS  ComputerSkillsS
YearsCodeS         1.000015       0.903143         0.392955        -0.019983
YearsCodeProS      0.903143       1.000015         0.397412        -0.014316
PreviousSalaryS    0.392955       0.397412         1.000015         0.025314
ComputerSkillsS   -0.019983      -0.014316         0.025314         1.000015
performing pca with n=2
PC1:
 Eigenvalue: 2.1702
 Eigenvector: [ 0.6376  0.6385  0.4308 -0.0094]
 Variance Explained: 54.25 %
PC2:
 Eigenvalue: 1.0040
 Eigenvector: [-0.0346 -0.0278  0.1141  0.9925]
 Variance Explained: 25.10 %
Total Variance Explained: 79.35 %

performing pca with n=3
PC1:
 Eigenvalue: 2.1702
 Eigenvector: [ 0.6376  0.6385  0.4308 -0.0094]
 Variance Explained: 54.25 %
PC2:
 Eigenvalue: 1.0040
 Eigenvector: [-0.0346 -0.0278  0.1141  0.9925]
 Variance Explained: 25.10 %
PC3:
 Eigenvalue: 0.7290
 Eigenvector: [-0.3057 -0.3005  0.8952 -0.122 ]
 Variance Explained: 18.22 %
Total Variance Explained: 97.58 %
plotting feature importance