Hi,
you may want to look at Macdonald P (2006) Mixdist package for R
www.math.mcmaster.ca/peter/mix/mix.html
It also has an anova test for your model so you would know if your "possible
sub-populations" are statistically significant of not. I don't know why
actually this package is not posted on CRAN, though!
I hope this helps,
Monica
-------------------------------------------------
Message: 50Date: Tue, 6 Nov 2007 11:40:07 +1300From: "Gareth Campbell" <[EMAIL
PROTECTED]>Subject: [R] Combining Density plotsTo: "R Help"
<r-help@r-project.org>Message-ID:<[EMAIL PROTECTED]>Content-Type: text/plain
Hello, What I am trying to do is: Generate a density plot of a population of
data. This data has a bimodaldistribution so I've isolated a couple of possible
sub-populations and Iwant to overlay these two density plots over the first to
see whether theyare contributing to the bimodal population. I can do this fine
with plot(density(...)) and lines(density(...)) . Butthe resulting plots seem
to NOT share the same scale or something. I've hada read up on bandwidth and
fiddled with this but I can't quite get them howthey should look. Needless to
say that the sub-populations are smaller (n)than the overall population. Does
anyone know how to scale the populations so they all plot on the samescale with
the density function? Tha!
nks very much -- Gareth CampbellPhD CandidateThe University of Auckland P +649
815 3670M +6421 256 3511E [EMAIL PROTECTED]@gmail.com
_________________________________________________________________
Get it now.
6971033
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