It would probably be more polite to give a warning
in 'nls' that the 'weights' argument is ignored. Something
like the following should do:
if(missing(weights)) warning("weights are not currently implemented")
> version
_
platform i386-pc-mingw32
arch i386
os mingw32
system i386, mingw32
status Under development (unstable)
major 2
minor 3.0
year 2005
month 12
day 07
svn rev 36656
language R
Patrick Burns
patrick at burns-stat.com
+44 (0)20 8525 0696
http://www.burns-stat.com
(home of S Poetry and "A Guide for the Unwilling S User")