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  • Predictive Analytics using Rattle and Qlik Sense
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Predictive Analytics using Rattle and Qlik Sense

Predictive Analytics using Rattle and Qlik Sense

By : Ferran Garcia Pagans, Fernando G Pagans
4 (5)
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Predictive Analytics using Rattle and Qlik Sense

Predictive Analytics using Rattle and Qlik Sense

4 (5)
By: Ferran Garcia Pagans, Fernando G Pagans

Overview of this book

If you are a business analyst who wants to understand how to improve your data analysis and how to apply predictive analytics, then this book is ideal for you. This book assumes you have some basic knowledge of statistics and a spreadsheet editor such as Excel, but knowledge of QlikView is not required.
Table of Contents (11 chapters)
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Preface
Preface
What this book covers
What you need for this book
Who this book is for
Conventions
Reader feedback
Customer support
Free Chapter
1
1. Getting Ready with Predictive Analytics
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1. Getting Ready with Predictive Analytics
Analytics, predictive analytics, and data visualization
Purpose of the book
Introducing R, Rattle, and Qlik Sense Desktop
Installing the environment
Downloading and installing Rattle
Installing Qlik Sense Desktop
Exploring Qlik Sense Desktop
Further learning
Summary
2
2. Preparing Your Data
2. Preparing Your Data
Datasets, observations, and variables
Loading data
Transforming data
Cleaning up
Exporting data
Further learning
Summary
3
3. Exploring and Understanding Your Data
3. Exploring and Understanding Your Data
Text summaries
Visualizing distributions
Correlations among input variables
Further learning
Summary
4
4. Creating Your First Qlik Sense Application
4. Creating Your First Qlik Sense Application
Customer segmentation and customer buying behavior
Loading data and creating a data model
Creating a simple data app
Associative logic
Creating charts
Analyzing your data
Further learning
Summary
5
5. Clustering and Other Unsupervised Learning Methods
5. Clustering and Other Unsupervised Learning Methods
Machine learning – unsupervised and supervised learning
Further learning
Summary
6
6. Decision Trees and Other Supervised Learning Methods
6. Decision Trees and Other Supervised Learning Methods
Partitioning datasets and model optimization
Decision Tree Learning
Entropy and information gain
Underfitting and overfitting
Using a Decision Tree to classify credit risks
Ensemble classifiers
Other models
Further learning
Summary
7
7. Model Evaluation
7. Model Evaluation
Cross-validation
Regression performance
Measuring the performance of classifiers
Further learning
Summary
8
8. Visualizations, Data Applications, Dashboards, and Data Storytelling
8. Visualizations, Data Applications, Dashboards, and Data Storytelling
Data visualization in Qlik Sense
Data analysis, data applications, and dashboards
Data storytelling with Qlik Sense
Further learning
Summary
9
9. Developing a Complete Application
9. Developing a Complete Application
Understanding the bike rental problem
Exploring the data with Qlik Sense
Creating a Qlik Sense App to control the activity
Using Rattle to forecast the demand
Model evaluation
Further learning
Summary
10
Index
Index

Downloading and installing Rattle

Rattle is an R package, which is a collection of functions and data someone else has developed, and we can use it in our programs. If you already have some hands-on experience with R, then this task should be a much lighter task.

Before starting with the installation, remember that you need an active Internet connection. The following are the steps to install Rattle:

  1. We will install Rattle from R Console; to open it double-click on the R x64 3.1.1 desktop icon.
  2. In R Console, type install.packages("rattle") and press Enter. The R Console will show you a list of CRAN mirrors; choose a download mirror that is the closest to your geographic location and R will download the Rattle package, as shown here:
    Downloading and installing Rattle
  3. After you have downloaded it, type library(rattle) and R will load the Rattle package into memory, and you will be able to use it. Use the rattle() command to start Rattle:
    Downloading and installing Rattle

    Note

    Rattle needs other R packages to work properly, the first time you open Rattle, the system will ask your permission to install some packages; in order to execute Rattle, you have to accept the installation of these packages.

  4. To exit, click on the Quit icon from Rattle GUI and type q() in the R Console:
    Downloading and installing Rattle

    Tip

    If you are from a non-English speaking country, you've probably installed everything in English, but Rattle's texts appear in your own language. Rattle will work fine in your language, but this book is written in English and it will refer to Rattle's functions and menus using English names. If you prefer to execute Rattle in English, quit Rattle and type Sys.setenv(LANGUAGE="en") in your R Console and start Rattle again.

    Downloading and installing Rattle

    Tip

    Rattle's menu now appears in English.

End of Section 6
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