Check out the Optimization Task View: http://cran.r-project.org/web/views/Optimization.html
On Wed, Jul 8, 2009 at 12:00 AM, leecholho<rokmn3...@hotmail.com> wrote: > > > thanks... > > i do homework.. my professor said , to use slover function in excel. > but i used R , so i want to find same function. > > question is " Max(x,y) x*E(R.a) + y*E(R.b)" , and x+y=1, > E(R.a) and E(R.b) is average of the special data.. > > special data is this > ------------------------------- > Nippon Steel Corp > ------------------------------- > E(R) = 4.65752 > V(R) = 99.05973 > sqrt(V(R)) = 9.95288 > ------------------------------- > Chubu Electric > ------------------------------- > E(R) = 2.19316 > V(R) = 40.42778 > sqrt(V(R)) = 6.35828 > ------------------------------- > TDK Corporation > ------------------------------- > E(R) = 1.10754 > V(R) = 24.24186 > sqrt(V(R)) = 4.92360 > > >> Date: Tue, 7 Jul 2009 20:48:51 -0700 >> From: m_olshan...@yahoo.com >> Subject: Re: [R] i need same function solver in excel.. >> To: rokmn3...@hotmail.com >> >> >> Can you be a bit more specific? >> >> --- On Wed, 8/7/09, leecholho <rokmn3...@hotmail.com> wrote: >> >> > From: leecholho <rokmn3...@hotmail.com> >> > Subject: [R] i need same function solver in excel.. >> > To: r-help@r-project.org >> > Received: Wednesday, 8 July, 2009, 1:42 PM >> > >> > hi.. >> > >> > i used R a few days.. >> > >> > who can call me? same function solver in excel. >> > >> > _________________________________________________________________ >> > [[elided Hotmail spam]] >> > [[alternative HTML version deleted]] >> > >> > ______________________________________________ >> > R-help@r-project.org >> > mailing list >> > https://stat.ethz.ch/mailman/listinfo/r-help >> > PLEASE do read the posting guide >> > http://www.R-project.org/posting-guide.html >> > and provide commented, minimal, self-contained, >> > reproducible code. >> > > > _________________________________________________________________ > [[elided Hotmail spam]] > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. > ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
