#### Alicante82

##### New Member

that it is useless to use higher than 2 polynomial functions for forecasting,because the statistical programm has the function to minimize the square amounts,and therefore may impose the coefficients beta3, beta4 etc... to nil.

But with that logic i would also impose beta 1 to nil...

I dont understand how the logic works, some is willing to help me out?

Thanks,Alessandro,