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Thread: Time Series: Estimate trend of series from linear-, quadratic-trend models

  1. #1

    Time Series: Estimate trend of series from linear-, quadratic-trend models


    Estimate, the trend of the series from a linear trend model and a quadratic model.
    I usually know how to do it but it is simply not working, this is what I have but I know I'm wrong.

    Linear => http://image.noelshack.com/fichiers/...t-13-55-25.png

    Quadratic => http://image.noelshack.com/fichiers/...t-13-55-36.png

    It's in french but it probably doesn't change anything if you know how it works! Would mean the world to me if someone can help me.

  2. #2
    Elite Member
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    Fire up your favorite spreadsheet.

    Yes, mathematics works in French.
    "Unique Answers Don't Care How You Find Them." - Many may have said it, but I hear it most from me.

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