[R] Autocorrelation in R for NLS

Hello Can someone please let me know how to test for Autocorrelation in R ( eg. like durbin-watson statistic or any other test) after performing Non linear least squares and what can be the best solution for it. Thanks Regards Ruchita [[alternative HTML version deleted]] __

Re: [R] NLS-Weibull-ERROR

arameter estimates I will be highly thankful if some one can please let me know where is the mistake as i m unable to trace it. Thanks Ruchita On Wed, Dec 16, 2009 at 3:18 PM, ruchita gupta wrote: > Hello > > After performing NLS estimates for some sigmoid model(like logistic growth &g

[R] MAPE and RMSE in R

Hello After performing NLS estimates for some sigmoid model(like logistic growth model and Gompertz growth models), how can we get the RMSE(root mean square error) and MAPE(mean absolute percentage error) in R statistical tool for comparison between two models Thanks Ruchita [[alternat

[R] R square in NLS-urgent help

Hello I need one urgent help I am trying to fit the Sigmod curve of logistic growth model using NLS estimation. But i do not get the R square value in that even after getting the "Summary" In that case how to compare the fit for 3 models and find which one is better fit?? How to get this R Square

[R] R square in NLS-urgent help

Hello I need one urgent help I am trying to fit the Sigmod curve of logistic growth model using NLS estimation. But i do not get the R square value in that even after getting the "Summary" In that case how to compare the fit for 3 models and find which one is better fit?? How to get this R Square

[R] R square in NLS-urgent help

Hello I need one urgent help I am trying to fit the Sigmod curve of logistic growth model using NLS estimation. But i do not get the R square value in that even after getting the "Summary" In that case how to compare the fit for 3 models and find which one is better fit?? How to get this R Square