I had been in tears trying to figure this out before I found your video. I searched through the textbook and different online sources, but nothing helped. With your help I was able to finish my case study. Thanks for sharing!!
@anisanisrina7278
11 ай бұрын
Hi, thank you so much for your video. I wanna ask, does this method can be applied for weekly data?
@eschmannm
3 жыл бұрын
I'm not sure how to use the formula at the end for forecasting. What is x2, x3, etc? What is my forecast for the following January?
@victoriagideon-mcree6072
Жыл бұрын
I came here for this answer and still no. LOL
@nicknguyen4502
4 жыл бұрын
Hi I'm curious why you didn't add January dummy column in the regression input range
@dattatraydhaygude157
4 жыл бұрын
Why not included by model
@lesliemajor6676
3 жыл бұрын
We always exclude one dummy variable out of the group. Ex: for 12 months of the year, exclude 1 so include 11. For 4 seasons, exclude one and include 3. This avoids redundancy (which is bad in regression). One of the dummies is not needed since the other dummies will tell you the same info
@lesliemajor6676
3 жыл бұрын
For example: if any of feb through Dec are =1 then the date was not in January and if all of Feb through Dec = 0 then the date must have been in January since it's not in all of tbe other months
@fionachen8720
3 жыл бұрын
Why was January excluded?
@lesliemajor6676
3 жыл бұрын
So we don't need January since we know about it from the values of the other months. You could exclude any 1 of the months fyi. I just picked January. It's easiest to exclude the first or last dummy in your list.
Пікірлер: 10