Hi all, I have a question concerning using R to calculate "x" when "f(x)" reaches its minimum, for example x is between -5 and 5. A simple and naive method would be divide (-5,5) into 10000 pieces, and then calculate the corresponding values of f(x)'s. Then the order of those f(x)'s would give me the answer of "x". However, this method is kind of slow and inaccurate. I would really appreciate if someone could give me some suggestions of improving it, or tell me a better method. Thank you. Best regards, Tianyu Zhan [[alternative HTML version deleted]]

?optim Statistics is the grammar of science. Karl Pearson <http: en.wikipedia.org="" wiki="" the_grammar_of_science=""> On Sat, Jul 19, 2014 at 9:04 PM, Zhan Tianyu <sewen67@gmail.com> wrote: > Hi all, > > I have a question concerning using R to calculate "x" when "f(x)" > reaches its minimum, for example x is between -5 and 5. A simple and naive > method would be divide (-5,5) into 10000 pieces, and then calculate the > corresponding values of f(x)'s. Then the order of those f(x)'s would give > me the answer of "x". However, this method is kind of slow and inaccurate. > I would really appreciate if someone could give me some suggestions of > improving it, or tell me a better method. Thank you. > > Best regards, > Tianyu Zhan > > [[alternative HTML version deleted]] > > _______________________________________________ > Bioconductor mailing list > Bioconductor@r-project.org > https://stat.ethz.ch/mailman/listinfo/bioconductor > Search the archives: > http://news.gmane.org/gmane.science.biology.informatics.conductor > [[alternative HTML version deleted]]