Data Science

Online University-produced Courses

Data Science is a hot topic on many online course platforms these days—if you're looking to learn formally from the bottom up, browse the current offerings from sites like Coursera and edX.

Khan Academy is also a source for fundamental mathematics background like probability and statistics and linear algebra.

Other Online Learning Platforms

Many other online learning systems offer hands-on lessons, often on a subscription model. Some of these are:

• DataCamp: has an emphasis on the R language, but beginning to offer some Python courses as well.
• DataQuest: their Data Science track uses Python, with a brief introduction to R.

Kaggle Preparation

If you want to try problems from the Kaggle data science competitions, DataCamp and DataQuest both offer free lessons introducing Kaggle through their Titanic problem:

• DataCamp Kaggle Tutorial in R
• DataQuest Kaggle Lesson in Python

Ezzeri Esa has also made a free tutorial for the Titantic problem available which he has presented to groups like the Pycon UK conference, also using Python with the pandas and scikit-learn libraries. These lessons are presented with the popular iPython Notebook interactive worksheet format.

Awesome Data Science

A big collection of resources that you might look to for more.