R help - Aug 2004 - locfit

Hi, I have a Q on locfit,
  E.g., I have an input data set of the form {(x, y, v)} , (x, y) is the
location in a 2D space, v is the value at that location.
I am wondering for the output of locfit(), if a given point (x, y) is in
the  input data set, is the value at  (x, y) going to be the exactly same
as the input? or it depends on the local fitting function?
does my Q make sense?

Thanks a lot in advance,
yan

The short answer is `no', assuming you are talking about the function in 
the CRAN package called `locfit' (you did not say).

locfit has many options, but all do local smoothing, not interpolation.

On Sat, 31 Jul 2004, Yan Yu wrote:
> Hi, I have a Q on locfit,
>   E.g., I have an input data set of the form {(x, y, v)} , (x, y) is the
> location in a 2D space, v is the value at that location.
> I am wondering for the output of locfit(), if a given point (x, y) is in
> the  input data set, is the value at  (x, y) going to be the exactly same
> as the input? or it depends on the local fitting function?
> does my Q make sense?
-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595