Exercise

Calculating MAPE and MAE

You previously calculated the forecast for the metropolitan region total sales and stored it in the object forecast_MET_t. You also have your validation data set stored in the object MET_t_valid that covers the same first 22 weeks of 2017. Let's see how good your forecast is!

Instructions

100 XP

Convert the mean of your forecast and validation data set to numeric values.
Calculate the MAE of your forecast.
Calculate the MAPE of your forecast.
Print both the MAE and MAPE.