MAPE | R Documentation |

This function calculates Median Absolute Prediction Error (MAPE), which assesses the prediction performance with respect to point forecasts of a given model. It is calculated based on one-step ahead prediction and reforecasting.

```
MAPE(model, Xt, start = 0.8, plot = TRUE)
```

`model` |
A time series model. |

`Xt` |
A |

`start` |
A |

`plot` |
A |

The MAPE calculated based on one-step ahead prediction and reforecasting is returned along with its standard deviation.

Stéphane Guerrier and Yuming Zhang

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