EViews.com

Dear Researcher

Could you please tell me the page number in Eview Guide where I can get the equation of 2nd Difference? I am following eview,first click Quick then show, then putting this equation d(x,2) but finding result is not 2nd difference. So, I am looking help from good Guy.

Thank all of you, 'Happy New Year'

Best wish

Ali

d(x,2) does give you the second difference.
d(x) = x-x(-1)
d(x,2) = (x-x(-1)) - (x(-1)-x(-2))

Perhaps you want
x-x(-2)
?