O'Reilly logo

Statistical Programming with SAS/IML Software by Rick Wicklin

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Chapter 15. Timing Computations and the Performance of Algorithms

  • Contents

  • 15.1 Overview of Timing Computations 371

  • 15.2 Timing a Computation 372

  • 15.3 Comparing the Performance of Algorithms 375

    • 15.3.1 Two Algorithms That Delete Missing Values 375

    • 15.3.2 Performance as the Size of the Data Varies 377

    • 15.3.3 Performance as Characteristics of the Data Vary 377

  • 15.4 Replicating Timings: Measuring Mean Performance 379

  • 15.5 Timing Algorithms in PROC IML 383

  • 15.6 Tips for Timing Algorithms 384

  • 15.7 References 384

15.1 Overview of Timing Computations

In a complex language such the SAS/IML language, there is often more than one way to accomplish a given task. Futhermore, in the statistical literature there are often competing algorithms for computing the same statistic. ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required