[R] Deconvolution of a spectrum

[Earl F. Glynn]

"Lukasz Komsta" <luke at novum.am.lublin.pl> wrote in message 
news:20070309122524.GD39652 at novum.am.lublin.pl...
> I have a curve which is a mixture of Gaussian curves (for example UV
> emission or absorption spectrum). Do you have any suggestions how to
> implement searching for optimal set of Gaussian peaks to fit the curve?
> I know that it is very complex problem, but maybe it is a possibility
> to do it? First supposement is to use a nls() with very large functions,
> and compare AIC value, but it is very difficult to suggest any starting
> points for algotirithm.

Perhaps these notes will be helpful if you don't have too much noise in your 
data:
http://research.stowers-institute.org/efg/R/Statistics/MixturesOfDistributions/index.htm

efg

Earl F. Glynn
Stowers Institute for Medical Research