Performance Metric

Formula

Score

$R^2$

$1-\frac{\text{SSE}}{\text{SST}}$

99.3%

$R_{adj}^2$

$1-\left[\frac{\left(1-R^2\right)\left(n-1\right)}{n-k-1}\right]$

99.2%

RMSE

$\sqrt{\frac{{\displaystyle \sum _i}{\left({\text{WCP}}_i-\widehat{{\text{WCP}}_i}\right)}^2}{N}}$

2.91

RRMSE

$\sqrt{\frac{\frac{1}{N}{\displaystyle \sum _i}{\left({\text{WCP}}_i-\widehat{{\text{WCP}}_i}\right)}^2}{{\displaystyle \sum _i}{\left(\widehat{{\text{WCP}}_i}\right)}^2}}$

2.82%

MAPE

$\left(\frac{1}{N}{\displaystyle \sum _i}\left|\frac{{\text{WCP}}_i-\widehat{{\text{WCP}}_i}}{{\text{WCP}}_i}\right|\right)\times 100$

1.99%