explaingit

johnmyleswhite/ml_for_hackers

Analysis updated 2026-07-03

★ 3,739RAudience · developerComplexity · 2/5LicenseSetup · moderate

TLDR

Code examples from the 2012 O'Reilly book Machine Learning for Hackers, covering practical machine learning techniques in R for programmers who prefer learning by doing over theory.

Mindmap

mindmap
  root((repo))
    What it does
      Book code examples
      Practical ML in R
    Tech Stack
      R language
      RCurl
      XML library
    Topics Covered
      Classification
      Regression
      Clustering
    Audience
      Programmer learners
      R beginners
Click or tap to explore — scroll the page freely

Code map

Detail Auto

An interactive map of this repo's files and how they connect — its source is parsed live in your browser. Click Visualize to build it.

filefunction / class

What do people build with it?

USE CASE 1

Run each chapter's R code examples while reading Machine Learning for Hackers to see the concepts applied to real datasets

USE CASE 2

Learn classification, regression, and clustering in R through hands-on examples instead of reading theory

USE CASE 3

Use the included package installer script to set up all required R libraries in one step before starting

What is it built with?

RRCurlXML

How does it compare?

johnmyleswhite/ml_for_hackersswirldev/swirl_coursesrstudio/shiny
Stars3,7394,5455,648
LanguageRRR
Setup difficultymoderateeasyeasy
Complexity2/51/52/5
Audiencedeveloperdatadata

Figures from each repo's GitHub metadata at analysis time.

How do you get it running?

Difficulty · moderate Time to first run · 30min

Requires R installed plus external system libraries for RCurl and XML before running the package installer.

Use, modify, and distribute freely for any purpose including commercial, as long as you keep the copyright notice (Simplified BSD License). Images fall under Creative Commons Attribution-Share Alike 3.0.

In plain English

This repository contains the code examples that accompany the 2012 O'Reilly book "Machine Learning for Hackers," written by Drew Conway and John Myles White. The book was aimed at programmers who wanted to learn machine learning through practical examples rather than theory-first explanations. All the code is written in R, a programming language commonly used for statistics and data analysis. To run the examples, you need R installed along with several supporting libraries. Some of those libraries (RCurl and XML) also require external software on your machine. The repository includes a setup script called package_installer.R that handles installing the required R libraries in one step. The README notes that the code may not match the book exactly, since comments and small changes have been added since publication. The source code is released under the Simplified BSD License, and any images or outputs produced by the code fall under Creative Commons Attribution-Share Alike 3.0. This is a companion resource, not a standalone application, so its main use is reading alongside the book.

Copy-paste prompts

Prompt 1
How do I install all the required R packages for the ml_for_hackers repository using the included installer script?
Prompt 2
Walk me through the R code for chapter 2 of ml_for_hackers and explain what each function and plot is doing.
Prompt 3
Using the ml_for_hackers regression example as a starting point, how do I apply the same approach to my own CSV dataset in R?
Prompt 4
What external software do I need to install before RCurl and XML work correctly on macOS for this repository?
Prompt 5
How does the classification example in ml_for_hackers split training and test data, and how can I adjust that ratio?

Frequently asked questions

What is ml_for_hackers?

Code examples from the 2012 O'Reilly book Machine Learning for Hackers, covering practical machine learning techniques in R for programmers who prefer learning by doing over theory.

What language is ml_for_hackers written in?

Mainly R. The stack also includes R, RCurl, XML.

What license does ml_for_hackers use?

Use, modify, and distribute freely for any purpose including commercial, as long as you keep the copyright notice (Simplified BSD License). Images fall under Creative Commons Attribution-Share Alike 3.0.

How hard is ml_for_hackers to set up?

Setup difficulty is rated moderate, with roughly 30min to a first successful run.

Who is ml_for_hackers for?

Mainly developer.

Open on GitHub → Explain another repo

This repo across BitVibe Labs

Scan in gitsafehub Deploy in gitdeployhub johnmyleswhite on gitmyhub

Verify against the repo before relying on details.

Alternatives & similar repos