Book Image

Getting Started with Haskell Data Analysis

By : James Church
Book Image

Getting Started with Haskell Data Analysis

By: James Church

Overview of this book

Every business and organization that collects data is capable of tapping into its own data to gain insights how to improve. Haskell is a purely functional and lazy programming language, well-suited to handling large data analysis problems. This book will take you through the more difficult problems of data analysis in a hands-on manner. This book will help you get up-to-speed with the basics of data analysis and approaches in the Haskell language. You'll learn about statistical computing, file formats (CSV and SQLite3), descriptive statistics, charts, and progress to more advanced concepts such as understanding the importance of normal distribution. While mathematics is a big part of data analysis, we've tried to keep this course simple and approachable so that you can apply what you learn to the real world. By the end of this book, you will have a thorough understanding of data analysis, and the different ways of analyzing data. You will have a mastery of all the tools and techniques in Haskell for effective data analysis.
Table of Contents (8 chapters)

Plotting a moving average

We're going to be expanding on our knowledge of average by introducing the moving average. The moving average is simply the average of a subset of the data, where we have a small window in which we compute the average and then we move that window, and then we compute the average again. We keep repeating this until we've expended our data. So, in this section, we're going to take a look at creating line plots. We're going to introduce the moving average, and then we're going to plot a moving average. Let's go back to our notebook and continue from where we left off.

In the last section, the plot that we saw had a lot of + signs, and that doesn't make for an elegant graph. So, what we're going to do is to use a line plot, as demonstrated in the following example:

Now, Data2D is the formal way of introducing data...