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  • Book Overview & Buying Simulation for Data Science with R
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Simulation for Data Science with R

Simulation for Data Science with R

By : Matthias Templ
4.2 (5)
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Simulation for Data Science with R

Simulation for Data Science with R

4.2 (5)
By: Matthias Templ

Overview of this book

Data Science with R aims to teach you how to begin performing data science tasks by taking advantage of Rs powerful ecosystem of packages. R being the most widely used programming language when used with data science can be a powerful combination to solve complexities involved with varied data sets in the real world. The book will provide a computational and methodological framework for statistical simulation to the users. Through this book, you will get in grips with the software environment R. After getting to know the background of popular methods in the area of computational statistics, you will see some applications in R to better understand the methods as well as gaining experience of working with real-world data and real-world problems. This book helps uncover the large-scale patterns in complex systems where interdependencies and variation are critical. An effective simulation is driven by data generating processes that accurately reflect real physical populations. You will learn how to plan and structure a simulation project to aid in the decision-making process as well as the presentation of results. By the end of this book, you reader will get in touch with the software environment R. After getting background on popular methods in the area, you will see applications in R to better understand the methods as well as to gain experience when working on real-world data and real-world problems.
Table of Contents (13 chapters)
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12
Index

Summary

Data scientists are confronted with both the problems, rounding errors, and instabilities because of numerical precision problems.

In R, one should be aware that printing a result does not mean that you see the exact number. It's just rounded off on given digits (default = 7), but internally, the numbers are saved with more digits.

In any case, we saw in this chapter that the floating point arithmetic of a computer cannot represent all numbers, and almost every number is rounded to the next even digit. By reading this chapter, you learned the basic knowledge of machine numbers and rounding. This knowledge is mandatory for any data scientist and statistician although these problems play a minor role in the following chapters. We also saw in this chapter convergence issues: how to observe convergence for a given problem. This will be continued and extended in the following chapters, such as in Chapter 4, Simulation of Random Numbers, and Chapter 5, Monte Carlo Methods for Optimization...

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