12) Performance

📖 Lecture

This week we review more underlying principles that have to do with performance in R.

🎯 Objectives

At the end of this week you will be able to:

• Provide an example of copy-on-modify policy.
• Apply the function system.time() to time commands in R.
• Apply yhe function Rprof() and summaryRprof() to profile code in R.

📚 Reading

• http://adv-r.had.co.nz/Performance.html

• https://adv-r.hadley.nz/perf-measure.html

🔬 Lab

Practice measuring performance.