Dave on Data's vision is a world where data analysis skills are as common as skills with Microsoft Office.

Dave on Data crafts and delivers training designed for ANY professional to develop valuable data analysis skills.

The Dave on Data teaching method has been battle-tested via live classroom training with 100s of working professionals with all manner of roles and backgrounds.


The Dave on Data philosophy is to let the content to speak for itself.

Check out the videos 👇.

You've got this if you want it.

Machine Learning in a Nutshell

This mini-course takes less than an hour to complete and is 100% intuitive - no math/code!

The video 👇 explains one of the most important concepts in all of machine learning - overfitting.

Interesting in learning more? Check out Machine Learning in a Nutshell.


R Programming Made Easy

R programming is by far the easiest way for ANY professional to unlock advanced analytics.

To be clear, whether you work in HR, Marketing, Finance, Supply Chain, Product Management, IT, whatever. Whether you have a coding background or not.

The video 👇 shows how your knowledge of Excel tables maps to R data frames.

Want to unlock advanced analytics in your work? Check out R Programming Made Easy.


Introduction to Machine Learning With R

Machine learning is a powerful tool for ANY professional to analyze business data.

By focusing on the right 20% of machine learning, Dave on Data can teach you disproportionately valuable machine learning skills.

The video 👇 show how classification decisions trees work in an intuitive manner.

You've got machine learning if you want it with Introduction to Machine Learning With R.


I completed David Langer's course, R Programming Made Easy.

As a decision support analyst, I have a burning desire to solve more problems and not let the data scientists have all the fun.

My first step on that path is familiarizing myself with one of the primary languages used in data science, R.

Dave's enthusiasm for data digging and problem-solving shine through in the videos.When I ran one section of code and looked at the results, I shouted, 'Whoa!' because of the implications.

So if you want to quickly get up to speed on the basics of R, I recommend Dave's 'R Programming Made Easy'. 

I will definitely be signing up for his future offerings.

- Ray Givler


After completing several Dave on Data classes, I share with you this short review.

Dave is a storyteller, his instructions and explanations are very clear, so important when it comes to teaching data analytics.

Dave makes excellent use of analogy methods to illustrate lessons purpose and compare concepts present in the study cases.

Dave is available in case of questions, and Dave's answers will encourage you to push another door and keep on learning & practising.

As a student, I became more confident using R code. My skills improved, although I am not a Senior Programer or Business Intelligence Analyst.

- JM Herard

Your Instructor

Greetings! My name is Dave Langer and I am the instructor for Dave on Data .

I'm a hands-on analytics professional, having used my skills with Excel, SQL, and R to craft insights and shape company strategy.

I'm also a skilled educator, having trained 100s of working professionals during my time at Data Science Dojo and through my current work with Dave on Data and TDWI.

I've held analytics leadership roles at Schedulicity, Data Science Dojo, and Micorosft.