[R] NA points in loess function

[Prof Brian Ripley]

On Fri, 27 Jun 2003, Yao, Minghua wrote:

> Thank you, Prof. Ripley. By adding na.action=na.exclude to loess function,
> the program runs great. 
> 
> I did omit some trivial things. But I still think it was NA's that caused
> troubles in predict or loess.

*NO* the errors message is from your usage of the result of
predict(loess(Y~X)).

Do make sure that you learn from your mistake, and you do need to 
understand why there is a difference here to do so.

-- 
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