search for: arugu

I could use some help understanding how nls parses the formula argument to a model.frame and estimates the model. I am trying to utilize the functionality of the nls formula argument to modify garchFit() to handle other variables in the mean equation besides just an arma(u,v) specification. My nonlinear model is y<-nls(t~a*sin(w*2*pi/365*id+p)+b*id+int,data=t1,

...that the Kernel pumps out and none of them seem to have any information about what is the kernels boot arguments. Is it even possible that this behaviour is down to the kernel not accepting the init= argument due to the way I have built it? It seems strange that it would take the rest of the aruguments but not that one. Anything else i can do? Manuel