October 2017
Beginner to intermediate
236 pages
7h 38m
English
Content preview from Modern R Programming Cookbook
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Efficient and fast summarization using the dplyr verbs
In R, there are many ways to do data summarization, but when the dataset gets bigger, some of the base functions take a longer time to complete the task. The dplyr library is designed to handle a larger dataset to perform this kind of task efficiently, and faster than the default base R functionality. In this recipe, you will explore the speed of the dplyr verb to calculate summary statistics from a large dataset and compare the elapsed time with that of the base R functionality.