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Advanced Analytics with R and Tableau

Advanced Analytics with R and Tableau

By : Jen Stirrup, Roberto Rösler, Ruben Oliva Ramos
1.3 (7)
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Advanced Analytics with R and Tableau

Advanced Analytics with R and Tableau

1.3 (7)
By: Jen Stirrup, Roberto Rösler, Ruben Oliva Ramos

Overview of this book

Tableau and R offer accessible analytics by allowing a combination of easy-to-use data visualization along with industry-standard, robust statistical computation. Moving from data visualization into deeper, more advanced analytics? This book will intensify data skills for data viz-savvy users who want to move into analytics and data science in order to enhance their businesses by harnessing the analytical power of R and the stunning visualization capabilities of Tableau. Readers will come across a wide range of machine learning algorithms and learn how descriptive, prescriptive, predictive, and visually appealing analytical solutions can be designed with R and Tableau. In order to maximize learning, hands-on examples will ease the transition from being a data-savvy user to a data analyst using sound statistical tools to perform advanced analytics. By the end of this book, you will get to grips with advanced calculations in R and Tableau for analytics and prediction with the help of use cases and hands-on examples.
Table of Contents (10 chapters)
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9
Index

For loops and vectorization in R

Specifically, we will look at the constructs involved in loops. Note, however, that it is more efficient to use vectorized operations rather than loops, because R is vector-based. We investigate loops here, because they are a good first step in understanding how R works, and then we can optimize this understanding by focusing on vectorized alternatives that are more efficient.

More information about control flows can be obtained by executing the command at the command line:

Help?Control

The control flow commands take decisions and make decisions between alternative actions. The main constructs are for, while, and repeat.

For loops

Let's look at a for loop in more detail. For this exercise, we will use the Fisher iris dataset, which is installed along with R by default. We are going to produce summary statistics for each species of iris in the dataset.

You can see some of the iris data by typing in the following command at the command prompt:

head(iris)

We...

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Advanced Analytics with R and Tableau
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