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This is a very well put together course. It teaches the basics of data cleansing and how to setup data for modeling--by far the most foundational technical aspect of data analysis.
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A lot of insight and practical knowledge of cleaning data that is available in many places in the Internet. I loved this course and it took me 2 tries to pass the peer graded assignment. ;)
By rahul g
•Dec 21, 2019
A very interesting and unique course, for the kind of things it helps to learn are often ignored. It brings the breadth of the theme forward.
By Jack D
•Jan 8, 2018
This was my first course with serious data gathering and manipulation. I found some of week 3 challenging, but overall enjoyed the learning.
By Xiaorong L
•Oct 20, 2020
Very good contents! But to be honest, the final course project is a bit too easy (I personally enjoyed it because it was not frustrating)...
By Daniel S
•Jul 11, 2017
Very informative and useful! You learn a lot specially through the (last) assignment(s)! Very happy with the course, materials and subjects.
By Adi T
•Jan 15, 2017
I feel that getting and cleaning data course is highly important to know since this is where 80% of the work in data science is being done.
By Alejandro B G
•Feb 11, 2016
WHen i took this course i though i will never apply the knwoledge in here... i was wrong, the basis of a credibly analisis is here. Thanks!
By Glenn W
•Mar 4, 2019
Very good course. Dr. Peng did a nice job of presenting the material. The projects and quizzes were challenging as well as educational.
By Gowtham B
•Apr 28, 2018
Excellent course to learn about data pre-processing techniques and data science. Really helpful, if you wish to become a data scientist.
By Jheroen P
•Dec 12, 2016
Very useful course. I suggest taking this course straight after R programming and before taking any other courses in the specialization.
By Ishwarya M
•Jun 21, 2019
The course content as well as the assessments are very good. I would recommend this course for everyone who wants to learn Data science
By Brett M
•Jul 12, 2016
Really fantastic even as an experienced R user. This is helping me remould my habits and break some of the bad ones. Thank you so much!
By Sajal J
•Aug 13, 2020
Very good course. The end course project was also very good as it gives a good experience in loading and cleaning a real-life dataset.
By Ricardo L
•Dec 29, 2019
The most important information I learned was the tidy data standard. Very useful and clear. It will make the analysis process easier.
By Michael A C R
•Aug 17, 2020
Fue una experiencia maravillosa, llena de actividades y lecciones muy útiles para obtener y limpiar bases de datos. Muy provechoso.
By Rumian R
•Aug 13, 2020
Massively underrated - I appreciated this course and I learned a lot. I now find it baffling how taken-for-granted data tidying is.
By George P
•Sep 24, 2018
The most crucial part of statistical inference or machine learning is tidy data and this course provides the basic tidy data rules!
By Yanying J
•Feb 3, 2020
It's useful and practical! Especially, the swirl excerises offered not only the method, but also a clear example of data cleaning.
By Andrew C
•Jan 8, 2019
The class was very interesting and useful, although I would have liked more opportunities to do web scraping in the problem sets.
By Mainul I
•Nov 21, 2016
This course is really helpful and very practical. Provides industry standard information and adheres to the scientific principles.
By Jorge L P d l T
•May 21, 2020
Managing Data has be a passion for me, this course for sure, opened me new skills using the powerful features of the R language.
By Sk M
•May 27, 2017
This course is one another step forward towards my data science specialization. I'm really enjoying my study about data Science.
By Dimitrios G
•Mar 3, 2017
Challenging and very educational. Needs a better explanation on the final peer assignment. Otherwise a great overall experience!
By CAPO-CHICHI F N
•Apr 14, 2020
I am very happy to have done this course, I discovered something new and I have new skills in Data Analysis thank you very much
By 倪育飞
•Oct 15, 2017
It gave me an overview of how to getting and cleaning data.The course is best suited for anyone who is a novice in data science
By Massimo M
•Aug 9, 2017
Great course, everything is well explained ant the exercises are challenging enough to really understand what you are studying.