 Usage:  {dy,d,dl,w} = makedesign(y)  
 
 Input:

  y                      a nxl-matrix with manifest variables (indicators) 
                         
 Output:

  dy                     a lxk matrix with outer designs (0 or 1) 
                         rows are counting manifest variables 
                         
  d                      a kxk matrix with inner unlagged designs (0 or 1) 
                         no diagonal values allowed 
                         
  dl                     a kxk matrix with inner lagged designs (0 or 1) 
                         diagonal elements are showing autoregression 
                         
  w                      a matrix with start weights same dimensions as dy 
                         will be a copy of dy 
                         
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(C) MD*TECH Method and Data Technologies, 17.8.2000
