R help - Nov 2009 - Error in nls Error in if(any(start < low || start > upp)) {: missing value when TRUE/FALSE needed

Hi,

I got this error every time when I put upper and lower bound on my
parameters in nls. I'm not quite sure what this error is about. I also
wanted to find the content of nls_port_fit. But typing this directly
into R doesn't seem to give any result out.

I also tried to see the content of  If anybody could shed some light
I'd greatly appreciate. Thank you.

rc

On Nov 04 2009 (Wed, 22:48), R_help Help wrote:
> Hi,
> 
> I got this error every time when I put upper and lower bound on my
> parameters in nls. I'm not quite sure what this error is about. I also
> wanted to find the content of nls_port_fit. But typing this directly
> into R doesn't seem to give any result out.
some functions are 'hidden' in the package namespace. you can use

 getAnywhere("nls_port_fit")

to see the source code of such functions.

and

getFromNamespace

to execute such functions from the R prompt.

> 
> I also tried to see the content of  If anybody could shed some light
> I'd greatly appreciate. Thank you.
> 
> rc
> 
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.

R_help Help wrote:
> Hi,
> 
> I got this error every time when I put upper and lower bound on my
> parameters in nls. I'm not quite sure what this error is about. I also
> wanted to find the content of nls_port_fit. But typing this directly
> into R doesn't seem to give any result out.
> 
> I also tried to see the content of  If anybody could shed some light
> I'd greatly appreciate. Thank you.
> 
> rc
Well, one might suspect that there's something wrong with the
way you're specifying 'start' and 'lower' and/or
'upper'.
But you're so secretive about what you're actually doing that
one can only speculate. At a minimum, you might indicate what
version of R you're using.

  -Peter Ehlers
> 
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
> 
>