nls() gets scaleOffset option to allow "zero-residual" fits; additi…

…onally replace all `assign(..) by faster `<<-` git-svn-id: https://svn.r-project.org/R/trunk@79352 00db46b3-68df-0310-9c12-caf00c1e9a41
r-devel · Oct 20, 2020 · a33b3ac · a33b3ac
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diff --git a/doc/NEWS.Rd b/doc/NEWS.Rd
@@ -115,6 +115,11 @@
       TLS protocol version to be used for \code{https://} URLs
       (\emph{inter alia} providing a means to check for sites using
       deprecated TLS versions 1.0 and 1.1).
+
+      \item For \code{nls()}, an optional constant \code{scaleOffset} may be added to
+      the denominator of the relative offset convergence test for cases where
+      the fit of a model is expected to be exact, thanks to a proposal by
+      John Nash.
     }
   }