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  _____     _____    _    _      ___      _  _   
 / ____||  |  ___|| | \  / ||   / _ \\   | \| || 
/ //---`'  | ||__   |  \/  ||  / //\ \\  |  ' || 
\ \\___    | ||__   | .  . || |  ___  || | .  || 
 \_____||  |_____|| |_|\/|_|| |_||  |_|| |_|\_|| 
  `----`   `-----`  `-`  `-`  `-`   `-`  `-` -`

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發送短信 : Analysis of Integrated and Cointegrated Time Series with R