评价指标

公式

MAE

$\text{MAE}=\frac{1}{n}{\displaystyle {\sum }_{i=1}^n\left|E_{ci}-E_{ci}^{*}\right|}$

MSE

$\text{MSE}=\frac{1}{n}{\displaystyle {\sum }_{i=1}^n{\left(E_{ci}-E_{ci}^{*}\right)}^2}$

R²

$R^2=1-\frac{{\displaystyle {\sum }_{i=1}^n{\left(E_{ci}-E_{ci}^{*}\right)}^2}}{{{\displaystyle {\sum }_{i=1}^n\left(E_{ci}-{\overline{E}}_c\right)}}^2}$

RMSE

$\text{RMSE}=\sqrt{\frac{1}{n}{\displaystyle {\sum }_{i=1}^n{\left(E_{ci}-E_{ci}^{*}\right)}^2}}$

MAPE

$\text{MAPE}=\frac{1}{n}{\displaystyle {\sum }_{i=1}^n\left|\frac{E_{ci}-E_{ci}^{*}}{E_{ci}}\right|\times 100\%}$