Book Image

Haskell Data Analysis cookbook

By : Nishant Shukla
Book Image

Haskell Data Analysis cookbook

By: Nishant Shukla

Overview of this book

Step-by-step recipes filled with practical code samples and engaging examples demonstrate Haskell in practice, and then the concepts behind the code. This book shows functional developers and analysts how to leverage their existing knowledge of Haskell specifically for high-quality data analysis. A good understanding of data sets and functional programming is assumed.
Table of Contents (14 chapters)
13
Index

Rendering a scatter plot in JavaScript using D3.js

We will use the portable JavaScript library called D3.js to draw a scatter plot. This allows us to easily create a web page that contains a graph from the Haskell code.

Getting ready

An Internet connection is necessary to perform this setup.

Install the d3js Haskell library as follows:

$ cabal install d3js

Create a website template to hold the generated JavaScript code as follows:

$ cat index.html

The JavaScript code will be as follows:

<html>
  <head>
    <title>Chart</title>
  </head>
  <body>
    <div id='myChart'></div>
    <script charset='utf-8' src='http://d3js.org/d3.v3.min.js'></script>
    <script charset='utf-8' src='generated.js'></script>
  </body>
</html>

How to do it…

  1. Import the relevant libraries as follows:
    import D3JS
    import qualified Data.Text as T
    import qualified Data.Text.IO as TIO
  2. Define...