Logarithm $\ln σ_{i}^{2}$ of the residuals Regression model of the fitted values ${\hat{Y}}_{i}$ to the sample	R²	Pr (>\|t\|)
$\ln e_{i}^{2} = 2.3875 + 1.7562 {\hat{y}}_{i}$	0.2432	0.00482