[R] bootstrapped CI for nonlinear models using nlsBoot from nlstools

lt;- fitted1 + sample(scale(resid1, scale = FALSE), : objeto de tipo 'environment' no es subconjunto I´ve tried with another response variable and other self starting function (SSlogis) and got the same error. Any suggestions? Francisco ------ Francisco Mora Ardila

[R] error using boxcox.nls during non linear estimation

from spanish) I´ve tryed other functions, even without self starters but it does not work. Then it seems to be there something in the data, but I don´t know what. Any suggestions? Francisco ---------- Francisco Mora Ardila Estudiante de Doctorado Centro de Investigaciones en Ecosist

Re: [R] confidence intervals for nls or nls2 model

Thanks! Now it is clear. Francisco On Wed, 16 May 2012 07:32:56 -0400, Gabor Grothendieck wrote > On Tue, May 15, 2012 at 11:20 PM, Gabor Grothendieck > wrote: > > On Tue, May 15, 2012 at 8:08 PM, Francisco Mora Ardila > > wrote: > >> Hi all > >> > >

Re: [R] confidence intervals for nls or nls2 model

On Tue, 15 May 2012 20:33:02 -0400, David Winsemius wrote > On May 15, 2012, at 8:08 PM, Francisco Mora Ardila wrote: > > > Hi all > > > > I have fitted a model usinf nls function to these data: > > > >> x > > [1] 1 0 0 4 3 5 12 10 1

[R] confidence intervals for nls or nls2 model

o get tconfidence and prediction intervals using new X data on a previous model? Thanks Francisco -- Francisco Mora Ardila Estudiante de Doctorado Centro de Investigaciones en Ecosistemas Universidad Nacional Autónoma de México __

Re: [R] error using nls with logistic derivative

It seems to work! Thanks and sorry for the personal message Francisco On Tue, 17 Apr 2012 09:09:24 +0200, peter dalgaard wrote > On Apr 17, 2012, at 06:23 , Francisco Mora Ardila wrote: > > > Hi > > > > I´m trying to fit a nonlinear model to a derivative of the logi

[R] error using nls with logistic derivative

R-help related topics but did not work. Thanks Francisco -- Francisco Mora Ardila Estudiante de Doctorado Centro de Investigaciones en Ecosistemas Universidad Nacional Autónoma de México __ R-help@r-project.org mailing list https://stat.et

[R] defining non linear predictors from nls in gam?

Hi all I´m trying to analize the role of time since abandonement (continuous variable) and biophysical environmental conditions on the recovery of the vegetation trough succession. First, I used non-linear least squares with nls function to model the effect of time on vegetation attributes.

[R] testing significance of axis loadings from multivariate dudi.mix

x and I dont understand why. Can somebody tell me why? Any suggestions to modify the script or to use other method? Thanks in advance. Francisco Francisco Mora Ardila Laboratorio de Biodiversidad y Funcionamiento del Ecosistema Centro de Investigaciones en Ecosistemas UNAM

Re: [R] Select some, but not all, variables stepwise

2}} > > __ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code.