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Avis et commentaires pour d'étudiants pour Exploration analytique de données par Université Johns-Hopkins

5,699 évaluations
823 avis

À propos du cours

This course covers the essential exploratory techniques for summarizing data. These techniques are typically applied before formal modeling commences and can help inform the development of more complex statistical models. Exploratory techniques are also important for eliminating or sharpening potential hypotheses about the world that can be addressed by the data. We will cover in detail the plotting systems in R as well as some of the basic principles of constructing data graphics. We will also cover some of the common multivariate statistical techniques used to visualize high-dimensional data....

Meilleurs avis


Jul 29, 2016

This is the second course I have taken from Roger Peng and both were outstanding. I have a strong math background, but not much of a background in stats, but this course was very approachable for me.


Sep 24, 2017

Very good course! It provide me the foundation in learning how to plot and interpret data. This will definitely strengthen my "R programming" to generate publication type figure for my genomics data!

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76 - 100 sur 794 Avis pour Exploration analytique de données

par Vasco A F R B P

Apr 05, 2020

One of the most fulfilling courses I've taken. Already used what I've learned to analyse the COVID 19 data and get more information from it, learning at the same time.

par Sanjay L

May 22, 2018

Week 3 - clustering concepts appear hard to comprehend initially. This week should first start with a practical example/use of clustering and then move on to technical

par Asif M A

May 04, 2016

Its one of the most important steps in learning data science. Before even jumping into the real thing, it is worthwhile to explore a little bit the data set at hand.

par Tim S

Apr 19, 2016

For someone new to data analytics, this was another great, rewarding course. But as with the others, it demands exploration beyond the lectures and course materials.

par Giovanna A G

Oct 15, 2016

Prof. Peng teaches you not only how to use the r base plotting system but also how to make wonderful graphs using the lattice and ggplot2 packages. Awesome course!

par Rob S

Jan 21, 2020

Very good resume of the previous lessons, you lear plotting, charts, working with big matrices, create a good practical workflow to understand your first analyses

par Piotr K

Oct 23, 2016

Material teached in this course is must have for everybody who wants to use R for Data Science. Exploratory Data Analysis is one of first steps in every project.

par Araks S

Jun 20, 2017

Great course, an excellent instructor who makes the videos easy to watch and listen.

Assignments were very important to me, as I learned a lot while doing it.

par Gary T

Aug 20, 2019

I learned a lot, this course more than others, really expanded my competence and appreciate for the capabilities of R, especially is visualization toolbox.

par Jeffrey G

Jul 06, 2017

Great course. Really does a good job of describing the goal of EDA and getting people excited about what questions you might be able to answer with data.

par 王昊辰

Dec 12, 2018

The data used for training are too big to be processed on my computer....

It is a real burden for my laptop when I use Rstudio to view some big files.....

par Dmytro K

Feb 04, 2016

pretty good starter course. I liked 40 min Case Study video at the end. It was very helpful to watch the instructor do the analysis from start to finish.

par Deleted A

Jul 23, 2018

Excellent course!

Congratulations and thanks to the teachers of this course for sharing their knowledge on such an engaging subject that is Data Science.

par David J G

Feb 03, 2016

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.

par Sandeepkumar P

Feb 02, 2016

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

par Nathan D

Oct 19, 2016

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.

par Alfredo A

Feb 06, 2018

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.

par Athanasios S

Jul 17, 2018

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.

par Alexis C

Aug 11, 2017

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

par David S

Apr 22, 2019

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.

par Fenneken K

Feb 07, 2020

Learned a great deal. Especially on clustering.

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

par Ishwar N

Feb 18, 2018

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

par Charles K

Feb 06, 2016

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

par Donald M

Oct 17, 2020

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

Dear teachers thank you for sharing your knowledge

par Roman O B

Sep 10, 2017

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