cal_WA.RdWeighted Average(WA) calculated based on MASE, sMAPE for an individual time series
cal_WA(training, test, forecast)
| training | training period of a time series |
|---|---|
| test | test peiod of a time series |
| forecast | forecast obtained from a fitted to the training period |
returns a single value: WA based on MASE and sMAPE