Hello all

I'm trying to do a simulation that involves identifying the minimum  
point between two peaks of a (usually) bimodal distribution. I can do  
this easily if there are only two peaks:

CnBdens<-density(Ys/Xs)	#probability density function for ratio of Ys  
to Xs
	
	for(p in 1:512) ifelse(CnBdens$y[p]>CnBdens$y[p-1],peak1<-p,break)  
#identifies first peak in probability distribution

	for(p in 1:512) ifelse(CnBdens$y[512-p]>CnBdens$y[512-p 
+1],peak2<-512-p,break) #identifies second peak in probability  
distribution

  but the simulation sometimes produces a small third peak at one end  
of the distribution. Is there any simple way to identify the two  
highest maxima in a trimodal distribution?

Thanks for any help

Rob Knell


School of Biological and Chemical Sciences
Queen Mary, University of London

'Phone +44 (0)20 7882 7720
Skype Rob Knell

Research: http://www.qmw.ac.uk/~ugbt794
Giant edible caterpillars: http://www.mopane.org
Invertebrate macro photography: http://web.mac.com/rknell/iWeb/Bugsite

"The truth is that they have no clue why the beetles had horns, it's  
the researchers who have sex on the brain and everything has to have  
a sexual explanation. And this is reasearch?!" Correspondent known as  
FairOpinion on Neo-Con website discussing my research.



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