How to substract baseline from signals

SupportCommunity FPScript How to substract baseline from signals

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  • #12507
    Yee Yan TayYee Yan Tay
    Mitglied

    Hi, i am getting some raman spectroscopy signal,i only found baseline in curve fitting, but is there standalone function to do that. This is because i would like to create a baseline for the background signal and substract it. Will the lowerenvelope function or the spline function helps?

    #8170
    Yee Yan TayYee Yan Tay
    Mitglied

    Hi, i am getting some raman spectroscopy signal,i only found baseline in curve fitting, but is there standalone function to do that. This is because i would like to create a baseline for the background signal and substract it. Will the lowerenvelope function or the spline function helps?

    #8813
    Bernhard KantzBernhard Kantz
    Moderator

    You can use the Approximation Analysis Object with the intial function C + X. After that you can subtract the result from the signal.
    Example:

    
    Dim _c = Approximation(Signal, APPROX_C + APPROX_X)
    Dim approx = Signal(_c[0]  + _c[1] * (Signal.X), Signal.X)
    Signal - approx
    

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