ExpGro3
ExpGro3-FitFunc
Function
Brief Description
Dreiphasige exponentielle Wachstumsfunktion mit Parametern Zeitkonstante.
Sample Curve
Parameter
Number: 7
Names: y0, A1, t1, A2, t2, A3, t3
Meanings: y0 = offset, A1 = amplitude, t1 = time constant, A2 = amplitude, t2 = time constant, A3 = amplitude, t3 = time constant
Lower Bounds: none
Upper Bounds: none
Note: different initial parameters are used for t1, t2 and t3 so as to make sure t3 > t2 > t1 in the fitting results.
Derived Parameters
Individual growth rate:
k1 = 1/t1
k2 = 1/t2
k3 = 1/t3
Individual doubling time:
Td1 = t1*ln(2)
Td2 = t2*ln(2)
Td3 = t3*ln(2)
Script Access
nlf_expgro3(x,y0,A1,t1,A2,t2,A3,t3)
Function File
FITFUNC\EXPGRO3.FDF
Category
Exponentiell
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