Re: [R] Non-linear least squares

2012-04-03 Thread n.surawski
Thanks for these comments! -- View this message in context: http://r.789695.n4.nabble.com/Non-linear-least-squares-tp4524812p4530664.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org mailing list

[R] Non-linear least squares

2012-04-02 Thread n.surawski
Greetings, I am having some troubles with the nls() function in R V 2.14.2. I am doing some modelling where I want to predict the mass of leaf litter on the forest floor (X) as a function of time since fire (t). Fortunately, I have a differential equation that I can fit to the data which is

Re: [R] Non-linear least squares

2012-04-02 Thread Peter Ehlers
On 2012-04-01 17:31, n.surawski wrote: Greetings, I am having some troubles with the nls() function in R V 2.14.2. I am doing some modelling where I want to predict the mass of leaf litter on the forest floor (X) as a function of time since fire (t). Fortunately, I have a differential