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Individual goodness-of-fit and exponents of the mean square displacement. R2 is the coefficient of multiple determinations for regression, which ranges from 0 to 1 and measures how close the data are to the fitted regression line and how well the observed outcomes are replicated by the model.
| pH | R2 | β |
|---|---|---|
| 6.0 | 0.9493 | 0.6167 |
| 7.0 | 0.9969 | 0.6744 |
| 8.0 | 0.9834 | 1.0932 |
