 
   Hi 
  Thank you very much.  
   
  So sorry for the badly writing an example.
   
  Let assume we are modelling in a quadratic programming framework. So we have
   
  min 1/2xHx + fx subject to: Ax=<b
   
  Here A is a matrix. Therefore the questions are valid here.
   
  

gyadav@ccilindia.co.in wrote:
  
hi Amir 

please see inline answers 


        Amir Safari <amsa36060@yahoo.com> 
Sent by: r-help-bounces@stat.math.ethz.ch   08/14/2007 02:37 PM 
            To
  R-help@stat.math.ethz.ch       cc
        Subject
  [R] Slack variable in OR
          



 
  
    Hi dear R users,
  
@@@ although i have not understood your problemos clearly whatever i can help, i will tell 

 Is it basically correct that a problem is ( linearly on nonlinearly ) modeled so that the slack variable is bounded by an upper bound ? 
  
 If so, how it can be handled and coded practically ?
  
 for example:
  
 x1+ x2 =< b   so ---->  x1 + x2 + s=b
  
 s=b- x1 - x2
  
 b- x1 - x2 =< upper value
@@@ i assume that x1 and x2 are >= 0, which is usually the case 
@@@ then in that case if both x1=x2=0 then x3=50 .... which is its meximum value   
 But algorithms can not calculate b- x1 - x2 , because the matrices are not compatible. Or how can it be well coded ?
@@@ where are the matrices i am just asking :-)  
 Thank you so much.
 Amir

      
---------------------------------
Boardwalk for $500? In 2007? Ha! 

                [[alternative HTML version deleted]]

______________________________________________
R-help@stat.math.ethz.ch 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.

        ============================================================================================
DISCLAIMER AND CONFIDENTIALITY CAUTION:\ \ This message and ...{{dropped}}

