Gompertz curve
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03-31-2015, 01:54 PM
(This post was last modified: 03-31-2015 03:07 PM by Marcio.)
Post: #8
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RE: Gompertz curve
(03-30-2015 10:07 PM)salvomic Wrote: doing so, I get a logistic as 1.1177/(1+0.6269*e^(-0.1929*X)) and it is very close to the observed data. The asymptote should be about 1.1177 (A)... The correct values for A, B and C are 1.151, 0.5191 and 0.1509 respectively. For those, R^2 = 0.9916. Let me know if you still need the program. I will have to edit it to make it more user-friendly. And yes, the curves are indeed very similar but only for that region your data covers, outside that area the functions behave differently, that means that the estimates you found for A, B and C using the logistic fit might not be the best for extrapolation. Marcio |
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Messages In This Thread |
Gompertz curve - salvomic - 03-30-2015, 03:09 PM
RE: Gompertz curve - salvomic - 03-30-2015, 06:36 PM
RE: Gompertz curve - Marcio - 03-30-2015, 07:44 PM
RE: Gompertz curve - salvomic - 03-30-2015, 07:51 PM
RE: Gompertz curve - salvomic - 03-30-2015, 10:07 PM
RE: Gompertz curve - Marcio - 03-31-2015 01:54 PM
RE: Gompertz curve - salvomic - 03-31-2015, 02:04 PM
RE: Gompertz curve - Han - 03-30-2015, 07:50 PM
RE: Gompertz curve - salvomic - 03-30-2015, 08:08 PM
RE: Gompertz curve - Marcio - 04-01-2015, 03:43 AM
RE: Gompertz curve - salvomic - 04-01-2015, 07:22 AM
RE: Gompertz curve - Marcio - 04-01-2015, 09:55 AM
RE: Gompertz curve - salvomic - 04-01-2015, 11:41 AM
RE: Gompertz curve - Marcio - 04-01-2015, 11:57 AM
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