[R] smoothing line and a pair of confidence intervals

[Roger Peng]

Also, the sm library has a nice function for doing a kernel smooth:

sm.regression(x, y, h = <bandwidth>, display="se")

does three things:  plot the points, draw the smooth line, draw the
confidence intervals (dotted lines).  You supply the bandwidth, of course.

-roger
_______________________________
UCLA Department of Statistics
rpeng at stat.ucla.edu
http://www.stat.ucla.edu/~rpeng

On Mon, 17 Dec 2001, Zhu, Yi wrote:

> 
> Hello R Users,
> 
> I am very new to R and would like to do something quick if possible, please
> help!
> 
> Suppose I have a data set of y versus x, how can I generate a smoothing line
> of y versus x (for example, using loess)
> and at the same time, generate a pair of confidence intervals for the
> smoothing or mean plus/minus standard deviation?
> 
> Best regards,
> 
> Yi Zhu
> 
> 
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