fredag 21 juli 2017

Beginner's guide to build data visualisations on the web with D3.js

From Beginner's guide to build data visualisations on the web with D3.js:
I am sure you have heard this many times. A picture is worth a thousand words. I think with the proliferation of data, this statement can easily be modified to A picture is worth thousand(s) of data points. If you are not convinced, look at the example below.

Storytelling through Data Visualisation

Let’s look at the following statement:
“In 2013, Gun Deaths Claimed 11,419 lives in the U.S.”
What comes to your mind first?
In 2013, US saw a lot of gun violence
Gun violence is high in the US
Deaths due to Gun violence were 11,419 (in 2013)

Without visualisation the above are just a set of statistics. Though this stat is useful, it still falls short in conveying the bigger picture. You don’t get the complete context – What kind of people were involved? How much was the nation’s loss? etc.

Let’s see what happens when we visualise it: