[R] Finding Lower Envelope of Points on a Plot?

Asha Sharma ans62 at cornell.edu
Wed Jun 30 20:05:34 CEST 2010


I am looking for a way to find the lower envelope of points on a plot, 
preferably specifying what percentage of points should be allowed to lie 
outside the envelope. There must be a straightforward way to do this, 
but I do not seem to be able to find it. I would greatly appreciate any 

Thanks for your time,


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