April 2016
Beginner to intermediate
246 pages
5h 20m
English
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Comparing an alternative function's performance using the microbenchmarking package
When dealing with efficiency issues, a fast way to evaluate two alternative functions can be really useful.
This recipe is going to show you how to do this quickly and effectively and display the results of your comparison in a ggplot diagram that is easy to understand.
Getting ready
This recipe is going to leverage the microbenchmark package to compute the function comparison and the ggplot2 package for comparison plotting:
install.packages(c("microbenchmark","ggplot2"))
library(microbenchmark)
library(ggplot2)The example that follows is represented by two alternative functions to determine, for a given numeric vector, which elements of the vector are even and which ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.