I think this is a great course. I learned a lot about data plotting and some multivariate techniques for understanding underlaying patterns of the data.

Wonderful course with lot of graphical representation of the data. Dimensional reduction and Clustering analysis needs a bit more detailed explanation.

Very solid class in terms of R's base plotting system. I wish Coursera offered an advanced class focusing on ggplot2 and the wider world of dat viz.

This was a great course. I learned how to use several graphic systems within R, and to imagine how to make clear answers to questions using plots.

Very good class. Of the four I've taken so far, this one has given me the most confidence that I could be successful as a data scientist/analyst.

This was an important class because in future classes in the certification peer reviewed projects require some sort of exploratory data analysis.

Great Course. Lectures did diverge from Quizes and projects but still was good practice of looking at a set of data and reporting out from it.

Learned a great deal. Especially on clustering.

The second project could be a little more challenging; I overestimated the answers requested.

Highly recommended course for budding data scientist. I loved the John Hopkins univ pedagogy and peer review system. The content is great.

Covers all the basics of visualization in R. Well structured and there is plenty of opportunity to practice your newly acquired skills.

Excellent course, it has allowed me to learn the bases to explore and analyze data.

Dear teachers thank you for sharing your knowledge

Great overview on explonatory data analysis and preparing graphs in R. I could apply the now knowledge directly to my current work.

The course is interesting and values practicality. The exercises and the projects really helped me a lot in grasping the knowledge!

This has been a great course. Accompanies by a book, it constitutes a great piece of material about exploring and visualizing data.

This course really helps you to learn the fundamental exploration techniques. The assignments and the examples are really helpful.

Very good introduction to Exploratory data analysis for beginners, the material is structural, lectures are interesting and useful

A Must have course for beginners in Data Exploration and Analysis. The best part is that exposure to these amazing concepts in R.

If you really want to learn, Coursera is the best option. There is a myriad of options and sources this specialization provide.

The lectures in this course included theory and examples on PCA and SVD - however this was missing from the practical materials

Excelente curso, si deseas aprender a exlporar tus datos este es el curso que debes tomar. Muchas gracias por la oporrtunidad.

If you want to know how to use plotting systems like ggplot2 and how to explore your raw data, this course is really Useful!!

Really good course, with amazing videos and examples. I have learned a lot and I think the projects were really interesting.

This was an excellent course full of useful exercises, assignments and lectures. I took these classes for the data analysis

basic plotting and getting the feel of data, this course really helped tackling that and seeing perspective in data analysis

An extremely interesting course, with many practical applications many of which I've applied in my day to day work already.