Graphing data using Plotly

Overview

• In this lesson we are going to learn how to graph data collected from our environmental sensors.
• Data will be graphed using a python package called plotly.
• Plotly can produce graphs in HTML format so that they can be easily displayed on a web page.
• Graphing sensor data is very important because it shows trends and changes in data more clearly.

Learning Objectives

• Learn how to create graphs using plotly
• Learn how to import data from files using pandas
• Learn how to add more formatting options in plotly

Creating graphs using plotly

• In this example we are going to install the plotly python package and then write a program to create some simple graphs.

Installation of the plotly python package

• From the Raspberry Pi top bar menu click on the Terminal icon.
• Open the Terminal and enter the command pip3 install plotly
• pip is short for Pip Installs Python.
• pip3 installs packages for python3

• The installation process will take approximately one minute.