Hello,
I need to get a prediction for 4 days ahead for an item price, I have only the last 10 days prices history of that item.
what would be the equation to solve this ?
Thanks
Be patient my friend, they are many posters from all different corners of the world on this forum so everyone is on a different time zone, since my last post I have enjoyed some very deep sleep, 8 of the best you could say.
Looking at your data and considering it is daily I would suggest the next 4 values could be decreasing. There seems to be a peak at the 3rd value and then after the 8th value it increases again. 10 values is a very small set to make a prediction on. There seem to be 2 weekly increases after values 1,2,8 & 9. These could very well be weekends.
Any more information regarding the nature of the data?
It is the gradient for y=bx+a from the least squares regression. It is a long a boring explantion but if you really want to know check out
Least-Squares Line