Re: [R] model fitting with lme

2013-03-01 Thread Bert Gunter
You did not get any replies because this is largely off topic. Please stop posting here and post to the r-sig-mixed-models list instead. -- Bert On Fri, Mar 1, 2013 at 9:33 AM, KAYIS Seyit Ali wrote: > (Apologise for re-sending. I am re-sending in case subject name did not give > enough informa

Re: [R] model fitting

2012-02-15 Thread Tsjerk Wassenaar
Hi Tony, ?nls Cheers, Tsjerk On Feb 15, 2012 8:03 PM, "Anthony Fristachi" wrote: Greetings, Any suggestions for approaching the fitting of the function y = b/exp(a*x) + c*x + y0 where a, b, c, and y0 are unknown constants and y and x are variables in a give dataset. Thanks Tony

Re: [R] Model fitting

2010-09-15 Thread Erik Iverson
Diogo B. Provete wrote: I have a data set and I want to procedure to model fitting (e.g., Poisson, Gausian, binomial, quasipoisson etc.). I'd like to know if there is an easier way to do this in R. Easier than what ? There is no shortage of R functions and packages to fit almost any type of

Re: [R] Model fitting with GAM and "by" term

2009-06-24 Thread Gavin Simpson
On Tue, 2009-06-23 at 14:18 -0400, Paul Simonin wrote: > Hello R Users, > I have a question regarding fitting a model with GAM{mgcv}. I have data > from several predictor (X) variables I wish to use to develop a model to > predict one Y variable. I am working with ecological data, so have data

Re: [R] model fitting using by(): how to get fitted values?

2009-05-06 Thread Duncan Murdoch
On 06/05/2009 8:22 AM, xavier.char...@free.fr wrote: Hi all, I'm doing nonlinear regressions on data with several factors. I want to fit say a logistic curve with different parameter values for each factor level. So I'm doing something like: tmp <- by( myData, list(myFactor1, myFactor2), func