 Usage:  {hatbeta,sigmam)=eivvec2(w,y,Gamma)  
 
 Input:

  w                      n x p matrix, the design variables 
                         
  y                      n x 1 matrix, the response 
                         
  Gamma                  (p+1) x (p+1) matrix 
                         
 Output:

  hatbeta                vector, the estimate 
                         
  sigmam                 scalar, the estimate 
                         
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(C) MD*TECH Method and Data Technologies, 17.8.2000
