Book Image

Hands-On Data Science with R

By : Vitor Bianchi Lanzetta, Doug Ortiz, Nataraj Dasgupta, Ricardo Anjoleto Farias
Book Image

Hands-On Data Science with R

By: Vitor Bianchi Lanzetta, Doug Ortiz, Nataraj Dasgupta, Ricardo Anjoleto Farias

Overview of this book

R is the most widely used programming language, and when used in association with data science, this powerful combination will solve the complexities involved with unstructured datasets in the real world. This book covers the entire data science ecosystem for aspiring data scientists, right from zero to a level where you are confident enough to get hands-on with real-world data science problems. The book starts with an introduction to data science and introduces readers to popular R libraries for executing data science routine tasks. This book covers all the important processes in data science such as data gathering, cleaning data, and then uncovering patterns from it. You will explore algorithms such as machine learning algorithms, predictive analytical models, and finally deep learning algorithms. You will learn to run the most powerful visualization packages available in R so as to ensure that you can easily derive insights from your data. Towards the end, you will also learn how to integrate R with Spark and Hadoop and perform large-scale data analytics without much complexity.
Table of Contents (16 chapters)

Quiz

  1. Quiz-tion: Pick the phrase that's giving incorrect information about Markov models:
    1. Markov models are used in finance
    2. They were never used to study French poetry
    3. They are named after the mathematician Andrey Markov
    4. There are many different applications of the Markov models
  2. Quiz-tion: About the HMM, it's wrong to say that:
    1. The so-called hidden states are always known
    2. The parameter space of an HMM also comprehends the transitional matrix
    3. They found application in finance
    4. The hidden states are related to the observations which are sometimes called visible states

Answersexecuting the following code will give you the answers to the quiz questions:

set.seed(9)
round(runif(2,1,4))