 Usage:  domulti(y{,origyear{,origperiod{,periodicity{,name}}}})  
 
 Input:

  y                      n x p matrix, data of the time series 
                         
  origyear               integer , the year of the first observation 
                         
  origperiod             integer , the season of the first obs. 
                         
  periodicity            integer , the number of seasons per period 
                         
  name                   string vector, names of the time series 
                         
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(C) MD*TECH Method and Data Technologies, 17.8.2000
