[R-sig-ME] Port algorithm in nls

Martin Maechler maechler at stat.math.ethz.ch
Thu Jun 19 18:22:08 CEST 2008

>>>>> "LOT" == Luis Orlindo Tedeschi <luis.tedeschi at hotmail.com>
>>>>>     on Thu, 19 Jun 2008 09:55:03 -0500 writes:

    LOT> Ken, thanks for you reply. Actually, you brought up a
    LOT> good topic. Maybe this question does not pertain to
    LOT> this list,

yes, definitely not!

    LOT> but maybe someone could point me to the
    LOT> right direction. Someone told me once that R cannot be
    LOT> used for official, government, etc reports because it
    LOT> has not been "validated" like SAS, Stata, etc. Does
    LOT> anyone know anything about this? Is there such a thing
    LOT> as statistical package accreditation? Thanks in
    LOT> advance.  

Short Answer:

- There's quite a bit myth in the above statement, which of course
  is perpetrated by sales representatives of SAS, Stata, ...

- For about a year now, there's a  Certification document
  --> http://www.R-project.org/ and chose "Certification"
  which adresses such things in part.

Long Answer:

- Please use 'R-help' to disuss this topic if you must

Martin Maechler, ETH Zurich

    LOT> Luís Orlindo Tedeschi Assistant Professor
    LOT>  Texas A&M University


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