Update regression approach powerlaw authored by Jamie Engelhardt Simon's avatar Jamie Engelhardt Simon
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title: regression approach - powerlaw
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## Dependency
It is assumed the data can be described by a power law, expressed either as Y or X dependent (referring to the second and first axis on a fatigue curve).
......@@ -71,7 +72,7 @@ where $k$ is the number of points in the data-series.
**Step 4**
<br>
Perform _minmax_ normalization. By doing so ensures that the features used by the model have similar scales and aid in faster convergence and accuracy.
Perform _minmax_ normalization. By doing so ensures that the features used by the model have similar scales, it also aids in faster convergence and accuracy.
```math
X_{d,s} = \frac{X_d - X_{\textrm{d,min}}}{X_{\textrm{d,max}} - X_{\textrm{d,min}}}, \quad
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