Re: maximization with array of constraints

*To*: mathgroup at smc.vnet.net*Subject*: [mg128383] Re: maximization with array of constraints*From*: felipe.benguria at gmail.com*Date*: Thu, 11 Oct 2012 02:10:08 -0400 (EDT)*Delivered-to*: l-mathgroup@mail-archive0.wolfram.com*Delivered-to*: l-mathgroup@wolfram.com*Delivered-to*: mathgroup-newout@smc.vnet.net*Delivered-to*: mathgroup-newsend@smc.vnet.net*References*: <k434cf$ne5$1@smc.vnet.net>

Thank you very much everyone for your help. I am new to this forum and had thought I had answered thanking earlier, but my message had not gone through. I believe all the suggestions above worked to solve my problem. Thanks. El jueves, 27 de septiembre de 2012 23:10:29 UTC-4, Dana DeLouis escribi : > > .. if mydata is an array with two columns and 100 rows, I would have 100 constraints, which are too many to enter manually. > .. x*mydata[[1,row,1]] + y*mydata[[1,row,2]] >0 Hi. If I understood your question correctly, here is one idea: (* Make sure your MyFunction is not unbounded *) mydata=RandomInteger[{1,9},{10,2}] {{7,8},{9,4},{5,7},{4,3},{2,2},{2,7},{8,5},{9,1},{6,5},{5,= 7}} const = Thread[mydata.{x,y}>0] { 7 x+8 y>0, 9 x+4 y>0, 5 x+7 y>0, 4 x= +3 y>0, 2 x+2 y>0, 2 x+7 y>0, 8 x+5 y>0, 9 x+y>0, 6 x+5 y>0, 5 x+7 y>0 } My= Function[x_,y_]:=-3x^2-4y+3 NMaximize[{MyFunction[x,y],const}, {x,y} ] {3= .10884, {x->0.190508,y->-0.0544307} } = = = = = = = = = = = HTH :>) Dana DeLouis Mac & Mathematica 8 = = = = = = = = = = = On Thursday, September 27, 2012 3:14:09 AM UTC-4, Felipe wrote:= > Hi, > > > > I am trying to maximize a function using NMaximize and I hav= e a large list of constraints that I would like to write with a loop or as = an array. > > > > It looks like the following: > > > > NMaximize[{myfunctio= n[x,y] , x*mydata[[1,row,1]] + y*mydata[[1,row,2]] >0 }] > > > > and I want= the restriction to be valid for the numbers in each row of the "mydata" ar= ray. That is, if mydata is an array with two columns and 100 rows, I would = have 100 constraints, which are too many to enter manually. > > Can I write= a loop for the constraints inside NMaximize ? Do you have some suggestion = on how to write this? I was not able to find it in earlier posts. > > > > T= hank you very much for your help > > Felipe