Meeting Details  
Date November 20, 2018
Time 18:00
Location DeVos 121E
Grand Valley State University: Pew Campus
401 Fulton St W, Grand Rapids, MI 49504
Parking Parking in DeVos lot/ramp

Presentations

Iteration: Will it go round in circles?

by Dr. David Zeitler

Long time R users know that we never use for loops except as a last resort. Most of us have learned to use and create vectorized code and (rarely) use the powerful built in apply iterator functions. These are equivalents of the container class iterator functions that have made C++, Java, Python and other languages much more robust. They are elegant and obtuse, making their use difficult at best. (I got a song that ain’t got no melody…) The introduction of the purrr package from the team at RStudio makes those apply functions clearer and easier to use. (Apologies to Billy Preston!)