Table 4.

Performance Metrics.

Metrics	Formula
RMSE	$\sqrt{\frac{{{\displaystyle \sum }}_{i=1}^n{\left(y_i-{\widehat{y}}_i\right)}^2}{n}}$
MAE	$\frac{{{\displaystyle \sum }}_{i=1}^n\left|y_i-{\widehat{y}}_i\right|}{n}$
MAPE	$\frac{100}{n}{\displaystyle {\displaystyle \sum }_{i=1}^n}\left|\frac{y_i-{\widehat{y}}_i}{y_i}\right|$
$y_i$: Actual or observed value  ${\widehat{y}}_i$: Predicted value  n: No of data points