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             ___       _____    _____      _____  
    ___     / _ \\    / ___//  |  ___||   / ___// 
   /   ||  | / \ ||   \___ \\  | ||__     \___ \\ 
  | [] ||  | \_/ ||   /    //  | ||__     /    // 
   \__ ||   \___//   /____//   |_____||  /____//  
    -|_||   `---`   `-----`    `-----`  `-----`   
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Text this: A comparative study of the finite-sample performance of some portmanteau tests for randomness of a time series