An increasing number of higher education institutions are making their courses available online. Institutions like Harvard University were one of the early pioneers of this, launching online platform edX in collaboration with MIT.

HarvardX (Harvard University’s online faculty) offers a wide range of online courses, including some of the best data science courses available.

Given how difficult it usually is to get a physical place at Harvard, taking an online course is the next best way to get ‘Harvard’ on your resumé!

## HarvardX Data Science Courses

If you want to start working in data science, enrolling in a HarvardX course is one of the best leg-ups you’ll ever get. Data science is the trend in all areas and one of the most sought after skills in 2020 with a wide range of applications.

With an average annual salary of $95,000, data science offers many promising careers in the form of Data Architects, Business Intelligence Developers, Enterprise Architects, Data Analysts, and many more.

Want to learn more about data science as a career? Check out our What is data science guide.

To help you get a head-start, we’ve ranked the top HarvardX data science courses for you to check out.

### 1. Professional Certificate in Data Science (Harvard University)

The HarvardX Data Science professional certificate program from Harvard University prepares you with the necessary knowledge base and useful skills to tackle real-world data analysis challenges. The program covers concepts such as probability, inference, regression, and machine learning. During the program, you'll learn:

- Fundamental R programming skills
- Statistical concepts such as probability, inference, and modeling and how to apply them in practice
- Gain experience with the tidyverse, including data visualization with ggplot2 and data wrangling with dplyr
- Become familiar with essential tools for practicing data scientists such as Unix/Linux, git and GitHub, and RStudio
- Implement machine learning algorithms
- In-depth knowledge of fundamental data science concepts through motivating real-world case studies

The demand for skilled data science practitioners in industry, academia, and government is rapidly growing. HarvardX's Data Science certificate prepares you with the necessary knowledge base and useful skills to tackle real-world data analysis challenges. The program covers concepts such as probability, inference, regression, and machine learning and helps you develop an essential skill set that includes R programming, data wrangling with dplyr, data visualization with ggplot2, file organization with Unix/Linux, version control with git and GitHub, and reproducible document preparation with RStudio.

### 2. Data Science: R Basics (Harvard University)

In this HarvardX data science course, you'll dive into R, the most popular programming language for data scientists.

You'll cover functions and data types, then tackle how to operate on vectors and when to use advanced functions like sorting. You'll also learn how to apply general programming features like "if-else," and "for loop" commands, and how to wrangle, analyze and visualize data.

- Basic R syntax
- Foundational R programming concepts such as data types, vectors arithmetic, and indexing
- How to perform operations in R including sorting, data wrangling using dplyr, and making plots

### 3. Data Science: Probability (Harvard University)

Probability theory is the mathematical foundation of statistical inference, which is crucial when analyzing data affected that's by chance. It's an essential skill for data scientists to have. During this free course, you'll learn:

### 4. Data Science: Machine Learning (Harvard University)

In this free course, you'll learn popular machine learning algorithms, principal component analysis, and regularization by building a movie recommendation system.

You will learn about training data, and how to use a set of data to discover potentially predictive relationships.

You will also learn about overtraining and techniques to avoid it such as cross-validation. All of these skills are fundamental to machine learning.

### 5. Principles, Statistical and Computational Tools for Reproducible Science (Harvard University)

Learn skills and tools that support data science and reproducible research, to ensure you can trust your own research results, reproduce them yourself, and communicate them to others. In this free HarvardX data science course, you'll learn:

- Understand a series of concepts, thought patterns, analysis paradigms, and computational and statistical tools, that together support data science and reproducible research.
- Fundamentals of reproducible science using case studies that illustrate various practices
- Key elements for ensuring data provenance and reproducible experimental design
- Statistical methods for reproducible data analysis
- Computational tools for reproducible data analysis and version control (Git/GitHub, Emacs/RStudio/Spyder), reproducible data (Data repositories/Dataverse) and reproducible dynamic report generation (Rmarkdown/R Notebook/Jupyter/Pandoc), and workflows.
- How to develop new methods and tools for reproducible research and reporting
- How to write your own reproducible paper.

## Next Steps

Want to expand your learning even further? Check out our recommended list of online data science courses, with certificates and short courses from Skillshare, PluralSight, Coursera and more.