May 03, 2020
This course provides an introduction of some important concepts and tools on a very important aspect of data science: cleaning and organizing data before any analysis. A must for any data scientist.
Feb 02, 2016
Easy, mostly instructive Course. The Assignments and quizzes are quite good, and illustrates the lessons very well.\n\nSee the videos for general presentation, but use the energy on the excersizes.
von Tseliso I M•
Feb 02, 2017
Of the courses I have done so far in the specialization, this was the most practical.
von Tacao M•
Feb 03, 2016
Very interesting material and basic knowledge on R to read files and produce tidy data
von Tomas A M•
Aug 22, 2017
Excellent course mates! Lots & lots of very useful info & examples! Thanks so much!!!
von Dmytro I•
May 15, 2017
It's a great course, however, explanations to the final assignment were rather vague.
von Sambit C•
Oct 12, 2016
A great course. Learned a lot. However student has to put an extra effort practicing.
von Kseniia K•
May 03, 2016
Great course, more difficult than previous two, but also more challenging and useful!
von Wang J•
May 02, 2016
Great practice for R programming and the MySQL part is extremely helpful for my work.
von Leonardo A•
Aug 08, 2019
This is the best course so far. Very challenging project at the end. I learned a lot
von Jorge A B J•
Jul 25, 2019
Very nice course! Would defensively recommend to anyone seeking this specialization!
von Puja G•
Feb 07, 2018
Very useful to get hands on experience in data science to solve real world problems!
von Abay J•
Jan 21, 2019
Love quizzes and a course project. Working on them develops you as a data scientist
von Ajendra S•
Aug 29, 2018
I really liked this course. This course helped me to understand the data wrangling.
von Tiago P F•
Jan 03, 2018
Excellent course, with a very important focus on documentation and code versioning.
Jun 27, 2016
Please update the using methods of some functions in this lecture.
Feb 13, 2016
90% of data science is cleaning, this really gets people accepting that key concept
von Vitalii S•
Jul 20, 2017
This course gave me an insights regarding data cleaning. Very grateful, thank you!
von Karthic C•
Jul 18, 2017
Well put together course. Happy and eager to finish the rest of the specialization
von Thor R•
Jan 18, 2019
Useful, the course is as much an introduction to R- part 2 as about cleaning data
von Raunak S•
Oct 05, 2018
excellent course to get started with to learn the basic concepts of data tidying.
von Sunder R V•
Aug 28, 2017
Enjoyed the course and learnt quite a few things in my quest for "Data Analytics"
von Roberto D•
Jun 21, 2017
Very useful for deciding best methods pulling data and consistently massage data.
von Premkumar S•
Sep 28, 2018
Excellent course with some great exercises put together that are very practical.
Mar 31, 2016
Nice one. I would like to have some more information like getting data from API
von Gustavo d P P•
Sep 13, 2019
Aprendi a usar dplyr e agora minha vida se tornou muito mais fácil!!!
von Yi-Yang L•
Mar 08, 2017
Good! Actually I think this course is useful no matter what other people think.