Web Based Visualization with Chart.js

Web Based Visualization with Chart.js

How to make a good looking pie chart with Chart.js ? Simple, clean and engaging HTML5 based JavaScript charts. Chart.js is an easy way to include animated, interactive graphs on your website for free.

Hello there, Welcome to this tutorial on getting started with Chart.js. Here you will learn:

  • What Data Visualization is
  • Why you need Data Visualization
  • What Chart.js is
  • Why you would want to use Chart.js for your Data Visualization
  • And finally, how to use Chart.js for your Data Visualizations

Just before we dive in,

What do YOU need to know to get started?

I would say nothing, except your PC, a text editor, a browser, and some knowledge of HTML, CSS, and JavaScript.

Once you have all those, you are ready to go. Let’s dive in!

What is Data Visualization?

Image for post

Charts I Creativeblog

Data visualization is the graphic representation of data. It involves producing images that communicate relationships among the represented data to viewers of the images. This communication is achieved through the use of a systematic mapping between graphic marks and data values in the creation of the visualization.

It could be said to be a better way to convey information gotten from data. Using eye-catching — and yet simple images, information is understood easier and transmitted seamlessly and almost effortlessly.

Why Data Visualization?

You might ask ‘why is this important?’ or “why don’t we just view the data in its tabular form?”. Well, I think it is quite important for a couple of reasons.

Data visualization is important because:

  • It makes it easier to spot trends in the data than having to go through rows of data to spot them, like counting the number of males and females in a table of 50,000 rows.
  • It makes the information easier to understand when compared to going through rows of data. A pie chart lets you easily know the greater of two variables at a glance.
  • It simplifies the most complex datasets, any data would fit in a small pie chart.

and a host of other reasons.

What is Chart.js?

Image for post

Chart.js | Chart.js

Chart.js is a free open-source JavaScript library for data visualization, which supports 8 chart types: bar, line, area, pie (doughnut), bubble, radar, polar, and scatter.

Why Chart.js?

Well, there a quite some reasons you should use Chart.js for your visualizations.

  • Chart.js is a free open-source library, which means you can use it when you want, as much as you want, as long as you want, and you can even contribute to making it better
  • Chart.js is very easy to install and use, as it uses HTML canvas to render the visualization.
  • Chart.js lets you create amazing visualizations.

chartjs programming data-visualization javscript web-development

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