Data Wrangling and Exploratory Data Analysis with R

The tidyverse is a collection of R packages designed for Data Science.

The scope of this course is restricted to:

• ggplot2 package

• dplyr package

• tidyr package

• readr package

• readxl package

• tibbles package

This course is going to teach how you can use some of these packages for data analysis covering 7 sections as follows.

Section 1: Introduction

In this section, you are going to know what the course is all about and also get a glimpse of some of the tools we will be using throughout the course.

Section 2: Data visualization with ggplot2

In this section, you will learn how to use the ggpot2 package for data visualization, using the diamonds dataset as a case study.

This section will cover major data visualizations such as:

• Barplots

• Boxplots

• Scatterplots

• Line plots

• Histogram

At the end of this section, should be able to know how to plot various visualizations and also give meaningful interpretations of them.

Section 3: Data manipulation with dplyr

In this section, you will learn all about the dplyr package and how you can manipulate your data with the available functions in the dplyr package using the New York flights database of 2013.

At the end of this package, you should be able to perform tasks on the dataset such as

• filtering

• arranging

• renaming

• variable creation

• selection

• Table/Dataset joining

The Practical Quiz at the end of this section will test your understanding of the various concepts treated in the section.

Section 4: Data tidying with tidyr

This section is aimed at showing you how you can tidy a dirty dataset when you come across one.

You are going to learn how to make datasets longer or wider.

You will also be learning how you can separate or unite columns together.

Section 5: Importing data

In this section, you will learn about modernized data frame called tibbles.

This section will also show you how you can import various structured data formats in R such as CSV and XLSX files.

Section 6: Case Study: Adventure Works Database

In this section, you will learn how you can combine various concepts you have learnt in this course and apply them to the Adventure Works database, and also what a data analyst's workflow process looks like.

Section 7: EXAM

This section consists of 20 multiple choice questions which you are expected to answer to get your final course certificate. It covers everything covered in this course.