Table 1 Feature correlation matrix.
Feature | \(f_1\) | \(f_2\) | \(f_3\) | \(f_4\) | \(y_1\) | \(\gamma\) |
|---|---|---|---|---|---|---|
\(f_1\) | 1.0000 | -0.0221 | -0.0042 | 0.0348 | 0.5812 | -0.6146 |
\(f_2\) | -0.0221 | 1.0000 | -0.4709 | -0.0058 | -0.0127 | 0.0223 |
\(f_3\) | -0.0042 | -0.4709 | 1.0000 | 0.0065 | -0.0027 | -0.0096 |
\(f_4\) | 0.0348 | -0.0058 | 0.0065 | 1.0000 | 0.7059 | -0.6597 |
\(y_1\) | 0.5812 | -0.0127 | -0.0027 | 0.7059 | 1.0000 | -0.9387 |
\(\gamma\) | -0.6146 | 0.0223 | -0.0096 | -0.6597 | -0.9387 | 1.0000 |