 Usage:  modelci(typ, ytt, header, outp,y)  
 
 Input:

  typ                    1,2 or 3, giving the type of model: 1=Full, 
                         2=Subset, 3=Reduced Rank 
                         
  ytt                    k x n matrix, the transformed (and transposed) 
                         time series 
                         
  header                 list of 7 objects: natlog,diff,origyear, 
                         periodicity,origperiod,name,exclude 
                         
  outp                   integer, (1=output to file, 0 = no output) 
                         
  y                      k x n matrix, the original time series 
                         
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(C) MD*TECH Method and Data Technologies, 17.8.2000
