Re: [R] logistic growth model

ct.org > > [mailto:r-help-boun...@r-project.org] En nombre de Renalda > > Enviado el: sábado, 04 de junio de 2011 6:17 > > Para: r-help@r-project.org > > Asunto: [R] logistic growth model > > > > I want to Fit a logistic growth model for y = k > > *eb0+b1(age)/1 +

Re: [R] logistic growth model

Ugartea z/g 48395 Sukarrieta (Bizkaia) SPAIN > -Mensaje original- > De: r-help-boun...@r-project.org > [mailto:r-help-boun...@r-project.org] En nombre de Renalda > Enviado el: sábado, 04 de junio de 2011 6:17 > Para: r-help@r-project.org > Asunto: [R] logistic growth model

[R] logistic growth model

I want to Fit a logistic growth model for y = k *eb0+b1(age)/1 + eb0+b1(age), can some one help on how to get the initial coefficients b0 and b1? I need to estimate in order to do the regression analysis. When I run using b0=0.5 and b1=3.4818, I get the following error 397443.8 : 0.5 3.4818

[R] logistic growth model

HI I want to Fit a logistic growth model for this data set where y = k*exp(b0+b1(age))/1 + exp(bo+b1(age)), start = list(b0 = 3, b1 = 3.5 ), trace = TRUE) I need to find the initial valued for b0 and b1. K =3. When I run using b0=3 abd b1 = 3.5, or any number I get the follo