Table 1 Statistical analysis of the utilized dataset.
From: Ensemble learning for prediction of inorganic scale formation: A case study in Oman
| Â | A/L type | Temperature @ pump depth (\(^\circ{\rm C}\)) | Pressure @ pump depth (psi) | Na (ppm) | Ca (ppm) | Mg (ppm) | SO4 (ppm) | HCO3 (ppm) | TDS (ppm) | pH | Scale |
|---|---|---|---|---|---|---|---|---|---|---|---|
Count | 224 | 224 | 224 | 224 | 224 | 224 | 224 | 224 | 224 | 224 | 224 |
Mean | 0.91 | 80.57 | 637.58 | 33,703.99 | 8469.36 | 1408.71 | 230.25 | 148.56 | 128,402.30 | 6.15 | 0.35 |
Std | 0.98 | 9.284 | 309.28 | 17,260.86 | 4436.41 | 662.58 | 357.11 | 54.02 | 60,809.63 | 0.48 | 0.47 |
Min | 0 | 56 | 80 | 1836 | 1300 | 425.20 | 0 | 1 | 596 | 4.75 | 0 |
25% | 0 | 76 | 426.75 | 18,305 | 4710.25 | 848.25 | 104.75 | 117.97 | 77,522.50 | 5.87 | 0 |
50% | 0 | 83 | 614 | 28,960 | 7363.65 | 1261.70 | 167.50 | 146.85 | 113,425 | 6.06 | 0 |
75% | 2 | 87 | 813 | 51,431.25 | 11,855 | 1837.50 | 241.25 | 176.50 | 190,045 | 6.42 | 1 |
Max | 2 | 113 | 2363 | 66,890 | 23,200 | 3050 | 3370 | 336 | 263,000 | 7.96 | 1 |
Skewness | 0.19 | −0.29 | 1.28 | 0.27 | 0.45 | 0.59 | 6.46 | 0.42 | 0.177 | 0.57 | 0.64 |
