Table 8 - Independent variables for the Linear Model .
To check whether the model is not biased and if it is a fair model for scoring purposes, one can analyze the relationship between the predicted and the actual value of EUI. The residual plot can also uncover eventual patterns that would indicate a biased model, i.e. a model that needs other features or degrees of freedom in order to adequately estimate the dependent variable. The reason to plot the logarithm instead of the original purely for visualization purposes, since the logarithm of EUI is closer to a normal distribution. From the residual plots we can see that the residual (predicted value - actual value) is not biased.