> J C Nash
> on Fri, 20 Aug 2021 11:41:26 -0400 writes:
> Thanks Martin. I'd missed the intention of that option,
> but re-reading it now it is obvious.
> FWIW, this problem is quite nasty, and so far I've found
> no method that reveals the underlying dangers well.
Thanks Martin. I'd missed the intention of that option, but re-reading
it now it is obvious.
FWIW, this problem is quite nasty, and so far I've found no method
that reveals the underlying dangers well. And one of the issues with
nonlinear models is that they reveal how slippery the concept of
> J C Nash
> on Fri, 20 Aug 2021 11:06:25 -0400 writes:
> In our work on a Google Summer of Code project
> "Improvements to nls()", the code has proved sufficiently
> entangled that we have found (so far!) few
> straightforward changes that would not break legacy
In our work on a Google Summer of Code project "Improvements to nls()",
the code has proved sufficiently entangled that we have found (so far!)
few straightforward changes that would not break legacy behaviour. One
issue that might be fixable is that nls() returns no result if it
encounters some
