 Usage:  m2 = VaRauxsums(vc, w, h)  
 
 Input:

  vc                     d x d variance matrix 
                         
  w                      1 x d weights vector 
                         
  h                      scalar, the cutpoint 
                         
 Output:

  m2                     m x d transformation matrix (it sums 
                         independent columns 
                         
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(C) MD*TECH Method and Data Technologies, 17.8.2000
