Im in VIYA visual forecasting 8.4 and using a dataset to forecast shipments during covid time - data is form Jan-Jun2020 weekly and I want to inject covid events called
covidonset and covidpeak using the code form users guide of VF......Im attaching the sas program here and sample of the dataset used to forecast....I get an error in pipeline saying the name of the event field needs to be CHAR but it is.....dont know what is going on.....
any help to get it working in VF would be appreciated
I can't see the log file, either.
You might find this article helpful:
So an event produces a dummy variable that models an effect such as an outlier, level shift or ramp. Modeling the effect improves the model. Often the event is modeled separately, and then the seasonality and the trend are easier to model once the event effect is removed. If an event occurs in history and in forecast, then the impact of the event on history can be used to forecast the future effect of the event. I would suggest first trying to determine the historical effect. Is that effect a temporary level shift? a ramp? You can try different effects, different dates, or even several different effects and then combine the effects. Once you know the historical impact, you might be able to guess better what the future impact will be.
Learn how to run multiple linear regression models with and without interactions, presented by SAS user Alex Chaplin.
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