It's a good question. I haven't seen any version of SAS that would offer you simple naive forecasting models. If we are speaking about Simple Naive non-seasonal forecast when you take a previous month's value to forecast the next month's value, then you can use a lag function, for example, lag(Sales). If we are speaking about Seasonal Simple Naive Forecast, then you can take a lag of 12, for example, if you have monthly data: lag12(Sales). It is all done at the data step in SAS and you have to split your sets into training and validation before that. The biggest problem, however, is that you have to calculate residuals and errors and that's where coding becomes complicated. If you have time, you can do it just for fun :) If you don't have time, then just go for Excel. To see and practice coding for naive models, you can check out these videos on SAS EG. Even though the part where you import and split your data is going to be different, the coding part will be the same: - Simple Naive: ruclips.net/video/vpIR1Vjdptk/видео.html - Seasonal Naive: ruclips.net/video/y8ywqYR5yMk/видео.html - Mean Naive: ruclips.net/video/RUGqQqExYw0/видео.html Or you can just go to this playlist: ruclips.net/p/PLrhafP55jzlmVuwjSI9cz5T5wBXWhNFVo I hope it helps :)
is there any way to create naive model on the university edition?
It's a good question. I haven't seen any version of SAS that would offer you simple naive forecasting models. If we are speaking about Simple Naive non-seasonal forecast when you take a previous month's value to forecast the next month's value, then you can use a lag function, for example, lag(Sales). If we are speaking about Seasonal Simple Naive Forecast, then you can take a lag of 12, for example, if you have monthly data: lag12(Sales). It is all done at the data step in SAS and you have to split your sets into training and validation before that. The biggest problem, however, is that you have to calculate residuals and errors and that's where coding becomes complicated. If you have time, you can do it just for fun :) If you don't have time, then just go for Excel.
To see and practice coding for naive models, you can check out these videos on SAS EG. Even though the part where you import and split your data is going to be different, the coding part will be the same:
- Simple Naive: ruclips.net/video/vpIR1Vjdptk/видео.html
- Seasonal Naive: ruclips.net/video/y8ywqYR5yMk/видео.html
- Mean Naive: ruclips.net/video/RUGqQqExYw0/видео.html
Or you can just go to this playlist: ruclips.net/p/PLrhafP55jzlmVuwjSI9cz5T5wBXWhNFVo
I hope it helps :)
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