[R] mixture model of binned data

From: D L Rustvold <dlrustvold_at_gmail.com>
Date: Thu 17 Mar 2005 - 07:06:55 EST

Is there a ready means to do mixture models of binned data in R?

I have a two dimensional grid of intensity values that represents many individual observations that are known to have bivariate normal distributions, although there is frequent overlap between the distributions. There is also a degree of noise in the data that may be modeled by a poisson distribution. I am looking for a way to identify the mixture model that best describes a subset of this grid of intensities so that I can deconvolute the multiple observations and noise distributions for quantification purposes.

I thought Mclust might be of use, but I didn't see any support for binned data. I have searched the archives, read the FAQ, and the document "Fitting Distributions with R" without finding a successful solution.

Any help would be appreciated.

Cheers,
Leif Rustvold



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