If I had looked more closely, I would have seen that bootstrap() returns
the component "replicates", from which one can compute empirical
confidence intervals.  Thanks to Peter Ellis and Mark Fisher for their help.

_______________________________________________________________________

DON MCKENZIE

Research Ecologist
College of Forest Resources, Box 352100
University of Washington
Seattle, WA 98195

206.616.4095
dmck@u.washington.edu

_______________________________________________________________________


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