Criteria

Formula

Criteria

Formula

MPE

$\frac{1}{n}{\displaystyle \sum }_{i=1}^{n}100\times \frac{{\epsilon }_i}{y_i}$

RMSE

$\sqrt{\frac{1}{n}{\displaystyle \sum }_{i=1}^n{\epsilon }_i^2}$

MAE

$\frac{1}{n}{\displaystyle \sum }_{i=1}^n\left|{\epsilon }_i\right|$

MAPE

$\frac{1}{n}{\displaystyle \sum }_{i=1}^n\left|\frac{{\epsilon }_i}{x_i}\right|\times 100$

MASE

$\left|\frac{{\epsilon }_i}{\frac{1}{n-1}{{\displaystyle \sum }}_{i=1}^n\left|Y_t-Y_{i-1}\right|}\right|$