If you are referring to something similar to LC-MS data, you might want to take a look at the `mscalib' and/or `ppc' packages. I haven't used those, so don't know how relevant they are to what you have in mind.
[Searching for `peak' on Prof. Baron's R search site turned up those two packages.] Andy > From: Gene Cutler > > I'm sure there must be various peak-finding algorithms out > there. Not > knowing of any, I have written one myself*, but I thought I'd ask to > see what's out there. > > Basically, I have a 2-dimensional data set and I want to > identify local > peaks in the data, while ignoring "trivial" peaks. My naive > algorithm > first identifies every peak and valley (point of inflection change in > the graph), then shaves off shallow peaks and valleys based on an > arbitrary depth parameter, then returns whatever is left. This > produces decent results, but, again, I'd like to know what other > implementations are available. > > (* source available on request) > > ______________________________________________ > [EMAIL PROTECTED] mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide! > http://www.R-project.org/posting-guide.html > > ______________________________________________ [EMAIL PROTECTED] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html