[R] (no subject)

[Peter Dalgaard BSA]

giovanni caggiano <gcaggiano at yahoo.com> writes:

> Dear All,
> A couple of questions about the nls package.
> 
> 1. I'm trying to run a nonlinear least squares
> regression but the routine gives me the following
> error message:
> 
>  step factor 0.000488281 reduced below `minFactor' of
> 0.000976563
> 
> even though I previously wrote the following command: 
> nls.control(minFactor = 1/4096), which should set the
> minFactor to a lower level than the default one,
> 1/1024=0.000976563. 
> Is there any way of setting the new minfactor to a
> lower level?

I suspect you didn't quite understand how to do it:

ctl.obj <- nls.control(minFactor = 1/4096)
nls(....., control=ctl.obj)


-- 
   O__  ---- Peter Dalgaard             Blegdamsvej 3  
  c/ /'_ --- Dept. of Biostatistics     2200 Cph. N   
 (*) \(*) -- University of Copenhagen   Denmark      Ph: (+45) 35327918
~~~~~~~~~~ - (p.dalgaard at biostat.ku.dk)             FAX: (+45) 35327907