Research Article
Hybrid Soft Computing Schemes for the Prediction of Import Demand of Crude Oil in Taiwan
Table 2
Pearson correlations for pairs of variables.
| | | | | | | | | | | | | | | | | | | | | | | | | |
| | 1.00 | | | | | | | | | | | | | | | | | | | | | | | | | 0.97 | 1.00 | | | | | | | | | | | | | | | | | | | | | | | | 0.99 | 0.96 | 1.00 | | | | | | | | | | | | | | | | | | | | | | | 0.31 | 0.27 | 0.32 | 1.00 | | | | | | | | | | | | | | | | | | | | | | 0.29 | 0.26 | 0.30 | 0.00 | 1.00 | | | | | | | | | | | | | | | | | | | | | 0.99 | 0.98 | 0.99 | 0.31 | 0.35 | 1.00 | | | | | | | | | | | | | | | | | | | | 0.33 | 0.45 | 0.31 | −0.02 | 0.13 | 0.37 | 1.00 | | | | | | | | | | | | | | | | | | | 0.99 | 0.96 | 0.99 | 0.32 | 0.30 | 0.99 | 0.30 | 1.00 | | | | | | | | | | | | | | | | | | 0.99 | 0.95 | 0.99 | 0.34 | 0.38 | 0.99 | 0.30 | 0.99 | 1.00 | | | | | | | | | | | | | | | | | 0.92 | 0.90 | 0.91 | 0.09 | 0.16 | 0.89 | 0.43 | 0.91 | 0.87 | 1.00 | | | | | | | | | | | | | | | | 0.81 | 0.85 | 0.79 | 0.04 | 0.16 | 0.80 | 0.55 | 0.79 | 0.75 | 0.94 | 1.00 | | | | | | | | | | | | | | | 0.97 | 0.99 | 0.96 | 0.27 | 0.26 | 0.98 | 0.45 | 0.96 | 0.95 | 0.90 | 0.85 | 1.00 | | | | | | | | | | | | | | 0.19 | 0.18 | 0.21 | 0.45 | −0.02 | 0.20 | −0.49 | 0.22 | 0.23 | −0.13 | −0.26 | 0.18 | 1.00 | | | | | | | | | | | | | 0.90 | 0.86 | 0.89 | 0.13 | 0.40 | 0.89 | 0.57 | 0.89 | 0.88 | 0.92 | 0.86 | 0.86 | −0.22 | 1.00 | | | | | | | | | | | | 0.99 | 0.92 | 0.99 | 0.31 | 0.38 | 0.97 | 0.25 | 0.99 | 0.99 | 0.89 | 0.76 | 0.92 | 0.17 | 0.89 | 1.00 | | | | | | | | | | | 0.98 | 0.93 | 0.98 | 0.30 | 0.39 | 0.98 | 0.27 | 0.98 | 0.99 | 0.90 | 0.77 | 0.93 | 0.15 | 0.91 | 1.00 | 1.00 | | | | | | | | | | 0.98 | 0.93 | 0.98 | 0.30 | 0.38 | 0.98 | 0.25 | 0.99 | 0.99 | 0.89 | 0.77 | 0.92 | 0.16 | 0.90 | 1.00 | 1.00 | 1.00 | | | | | | | | | 0.11 | 0.24 | 0.09 | −0.24 | −0.31 | 0.11 | 0.75 | 0.08 | 0.00 | 0.37 | 0.54 | 0.24 | −0.53 | 0.30 | −0.02 | −0.01 | −0.02 | 1.00 | | | | | | | | −0.09 | −0.22 | −0.07 | 0.25 | 0.34 | −0.08 | −0.72 | −0.06 | 0.02 | −0.35 | −0.52 | −0.22 | 0.53 | −0.27 | 0.05 | 0.03 | 0.05 | −1.00 | 1.00 | | | | | | | 0.96 | 0.91 | 0.96 | 0.25 | 0.44 | 0.95 | 0.38 | 0.96 | 0.96 | 0.91 | 0.83 | 0.91 | −0.01 | 0.95 | 0.98 | 0.98 | 0.98 | 0.07 | −0.05 | 1.00 | | | | | | 0.98 | 0.92 | 0.98 | 0.27 | 0.33 | 0.96 | 0.34 | 0.98 | 0.96 | 0.94 | 0.82 | 0.92 | 0.07 | 0.93 | 0.98 | 0.98 | 0.98 | 0.12 | −0.10 | 0.98 | 1.00 | | | | | 0.98 | 0.93 | 0.98 | 0.27 | 0.38 | 0.98 | 0.25 | 0.98 | 0.99 | 0.88 | 0.75 | 0.93 | 0.20 | 0.88 | 0.99 | 0.99 | 0.99 | −0.01 | 0.04 | 0.96 | 0.97 | 1.00 | | | | 0.99 | 0.94 | 0.99 | 0.35 | 0.35 | 0.98 | 0.30 | 0.99 | 0.99 | 0.91 | 0.80 | 0.94 | 0.16 | 0.90 | 0.99 | 0.99 | 0.99 | 0.06 | −0.03 | 0.97 | 0.98 | 0.98 | 1.00 | | | 0.91 | 0.84 | 0.92 | 0.19 | 0.41 | 0.90 | 0.06 | 0.92 | 0.92 | 0.81 | 0.68 | 0.84 | 0.23 | 0.82 | 0.94 | 0.94 | 0.94 | −0.13 | 0.15 | 0.90 | 0.90 | 0.95 | 0.93 | 1.00 |
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