 Usage:  d = xdiagp (x)  

 

 Input:



  x                      n x p matrix 

                         

  w                      optional, scalar or n x 1 weight vector 

                         

 Output:



  d                      n x 1 vector of diagonal elements of 

                         X(X'WX)^(-1) X' or W'^(1/2)X(X'WX)^(-1) X'W^(1/2) 

                         

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(C) MD*TECH Method and Data Technologies, 21.9.2000

