title: Error metric
text: # Error metric
  
  An Error Metric is a type of Metric used to measure the error of a forecasting model. They can provide a way for forecasters to quantitatively compare the performance of competing models. Some common error metrics are:
  
  * Mean Squared Error (MSE)
  * Root Mean Square Error (RMSE)
  * Mean absolute error (MAE)
  * Mean Absolute Scaled Error (MASE)
  * Mean Absolute Percentage Error (MAPE)
  * Symmetric Mean Absolute Percentage Error (SMAPE)
  