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            ______   _    _     ______   _____    
  ____     /_   _// | \  / ||  /_   _// |  __ \\  
 |    \\    -| ||-  |  \/  ||   -| ||-  | |  \ || 
 | [] ||    _| ||_  | .  . ||   _| ||_  | |__/ || 
 |  __//   /_____// |_|\/|_||  /_____// |_____//  
 |_|`-`    `-----`  `-`  `-`   `-----`   -----`   
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發送短信 : Applied Spatial Data Analysis with R