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Advanced Analytics with R and Tableau

You're reading from   Advanced Analytics with R and Tableau Advanced analytics using data classification, unsupervised learning and data visualization

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Product type Paperback
Published in Aug 2017
Publisher Packt
ISBN-13 9781786460110
Length 178 pages
Edition 1st Edition
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Authors (3):
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Roberto Rösler Roberto Rösler
Author Profile Icon Roberto Rösler
Roberto Rösler
Ruben Oliva Ramos Ruben Oliva Ramos
Author Profile Icon Ruben Oliva Ramos
Ruben Oliva Ramos
Jen Stirrup Jen Stirrup
Author Profile Icon Jen Stirrup
Jen Stirrup
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Table of Contents (10) Chapters Close

Preface 1. Advanced Analytics with R and Tableau FREE CHAPTER 2. The Power of R 3. A Methodology for Advanced Analytics Using Tableau and R 4. Prediction with R and Tableau Using Regression 5. Classifying Data with Tableau 6. Advanced Analytics Using Clustering 7. Advanced Analytics with Unsupervised Learning 8. Interpreting Your Results for Your Audience Index

Building your own decision system-based IoT


In this section, we build a simple decision system using fuzzy logic on Raspberry Pi. We use Python for implementation. We build a system to monitor temperature and humidity in a room to decide if the environment is comfortable or not. If the environment is not comfortable, then we turn on a cooler machine.

The following is our design system:

Wiring

We use DHT22 and relay modules for our wiring. Connect the DHT22 module into the following connections:

  • DHT22 pin 1 (VDD) is connected to the 3.3V pin from Raspberry Pi

  • DHT22 pin 2 (SIG) is connected to the GPIO23 (see the BCM column) pin from Raspberry Pi

  • DHT22 pin 4 (GND) is connected to the GND pin from Raspberry Pi

  • A relay VCC is connected to the 3.3V pin from Raspberry Pi

  • A relay GND is connected to the GND pin from Raspberry Pi

  • A relay signal is connected to the GPIO26 (see the BCM column) pin from Raspberry Pi

The complete wiring is shown in the following figure:

Writing the program

We build a fuzzy logic...

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