[R] using kernel density estimates to infer mode of distribution
Dan Rabosky
dlr32 at cornell.edu
Thu Feb 16 00:28:25 CET 2006
Hello...
Is it possible to use "density" or another kernel density estimator to
identify the mode of a distribution? When I use 'density', the resulting
density plot of my data is much cleaner than the original noisy histogram,
and I can clearly see the signal that I am interested in. E.g., suppose my
data is actually drawn from two or more normal (or other)
distributions. Looking at the kernel density plots, it seems that the
estimator gives a good approximation of the modal values of each
distribution, but I can't figure out how to obtain these values short of
visually estimating the location of the mode using the plot(density).
Is there a relatively easy way to do this?
Thanks in advance for your help!
Dan Rabosky
Dan Rabosky
Department of Ecology and Evolutionary Biology
Cornell University
Ithaca, NY14853-2701 USA
web: http://www.birds.cornell.edu/evb/Graduates_Dan.htm
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