Thanks for your suggests, but I need to obtain the MAX of this function: Max x1*0.021986+x2*0.000964+x3*0.02913
with these conditions: x1+x2+x3=1; sqrt((x1*0.114434)^2+(x2*0.043966)^2+(x3*0.100031)^2)=0.04; x1>=0; x2>=0; x3>=0; Thanks and again Thanks, Massimiliano My apologies, didn't see the boundary constraints. Try this one... f <- function(x) (sqrt((x[1]*0.114434)^2+(x[2]*0.043966)^2+(x[3]*0.100031) ^2)-0.04)^2 optim(par=rep(0,3),f,lower=rep(0,3),upper=rep (1,3),method="L-BFGS-B") and check ?optim --- "massimiliano.talarico" <[EMAIL PROTECTED]> wrote: > I'm sorry the function is > > sqrt((x1*0.114434)^2+(x2*0.043966)^2+(x3*0.100031)^2) =0.04; > > Have you any suggests. > > Thanks, > Massimiliano > > > > What is radq? > > --- "massimiliano.talarico" > <[EMAIL PROTECTED]> wrote: > > > Dear all, > > I need a suggest to obtain the max of this function: > > > > Max x1*0.021986+x2*0.000964+x3*0.02913 > > > > with these conditions: > > > > x1+x2+x3=1; > > > radq((x1*0.114434)^2+(x2*0.043966)^2+(x3*0.100031)^2) =0.04; > > x1>=0; > > x1<=1; > > x2>=0; > > x2<=1; > > x3>=0; > > x3<=1; > > > > Any suggests ? > > > > Thanks in advanced, > > Massimiliano > > > > ______________________________________________ > > [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 > > and provide commented, minimal, self-contained, > > reproducible code. > > > > ______________________________________________ > [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 > and provide commented, minimal, self-contained, reproducible code. > ____________________________________________________________ ________________________ Fussy? Opinionated? Impossible to please? Perfect. Join Yahoo!'s user panel and lay it on us. http://surveylink.yahoo.com/gmrs/yahoo_panel_invite.asp?a=7 ______________________________________________ [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 and provide commented, minimal, self-contained, reproducible code.
