File: qassign.cat

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qassign           Scilab Group           Scilab function            qassign
NAME
   qassign - solves a quadratic assignment problem
  
CALLING SEQUENCE
 [crit,order] = qassign(c,f,d)
PARAMETERS
 c  : real matrix
    
 f  : real matrix
    
 d  : real matrix
    
 crit
     : real scalar
    
 order
     : integer row vector 
    
DESCRIPTION
   qassign solves the quadratic assignment problem i.e. minimize the global
  criterium:  crit = e(1)+...+e(n)   where  e(i) = c(i,l(i))+ fd(i)   where
   fd(i) = f(i,1)*d(l(i),l(1))+...+f(i,n)*d(l(i),l(n))   c, f and d are n x
  n real arrays; their diagonal entries are zero. 
  
EXAMPLE
 n=15;
 d=100*rand(15,15);
 d=d-diag(diag(d));
 c=zeros(n,n);f=c;
 f(2:n,1)=ones(1:n-1)';
 [crit,order]=qassign(c,f,d)
SEE ALSO
   knapsack