HS
2020年5月2日
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.
DH
2016年2月1日
Easy, mostly instructive Course. The Assignments and quizzes are quite good, and illustrates the lessons very well.
See the videos for general presentation, but use the energy on the excersizes.
by Matheus L N
•2018年6月6日
was a hard module for whose isn't a programmer, but was well done structureted to easy learning with hard studying
by ayush j
•2018年4月18日
Many tricks and tips tools, many good functions. its really way completing my need on R at initial level i needed.
by Ekta R
•2017年6月27日
I am very much enjoyed the course. However, a lot of dedication is required as a beginner to complete this course.
by Aman G
•2017年6月15日
Really helped me learn the different sources of acquiring data into R and methods to transform data into tidy data
by Medha B
•2020年9月22日
Really great course and i feel a necessary one as it connects and covers many points of the previous 2 courses.
by 坂本幹次
•2020年9月8日
the course provide useful functions and methods and tell us why we should use them in a way easy to understand.
by Francisco M
•2020年7月12日
A very demanding course. It took me more than a month to end it but It was worth the effort. I learned a lot.
by Thomas G
•2020年6月6日
Each quiz made me learn something new. The final assignment was just the right amount of challenge for a MOOC.
by AMY B P
•2019年5月25日
The assignment was quite challenging bu the course overall was very good. The course was structured very well.
by Marcus V M d S
•2017年5月29日
Learned a lot, manipulating real data sets to produce "tidy" data sets, suitable for analysis. A great course!
by VIVEK R
•2016年6月5日
Its really help me a lot to build up my basic concept and now data wrangling is quit bit easy for me.
Thanks :)
by William B B
•2019年6月12日
Excellent course. I've already used some of the techniques learned here. It's very applicable to those in o
by Ritayan G
•2020年5月30日
At first sight seemed very easy but the assignments and quizzes are really challenging. Overall nice course.
by Deyban P
•2016年10月12日
Great course, you learn a lot of ways to find data and improve other skills as regex and the use of "dplyr".
by Damian
•2017年5月8日
Take it twice if needed, do not go pass this point until the science behind this course is well understood.
by ZAMI K
•2020年4月21日
If you really want to learn, there is no better option than these courses of Data Science Specialization.,
by Michael S
•2016年4月26日
Fantastic knowledge cleverly delivered. This course adds structure and polish to your data munging skills.
by Yasel G S
•2016年8月4日
This course was very important for my work. I learned so much and I want to say thanks to the professors.
by Jigar P
•2019年1月29日
this course is a hands of this specialization in R.
this hands use to play with a raw and tidy data in R.
by Edwin L A
•2017年7月31日
He aprendido muchísimo pero sobre todo he adquirido estrategias para realizar un buen análisis de datos.
by Abhimanyu B
•2017年1月2日
Teaches a crucial and often overlooking step in the data analysis workflow. Brilliant tips and insights!
by Francisco M R O
•2018年11月28日
This course was very good, I learned a lot of useful things about R and how processed data should look.
by Sandhya A
•2018年2月23日
I have learnt a lot. Overall content is great ,in a small span of time I did learn few good techniques.
by Enlik
•2019年1月6日
Great course with detailed exercise about what's most important task in Data Science, "Cleaning Data"
by Pieter v d V
•2018年1月29日
Tells you the clean data standards and how to transmute data to fit the description. Very accessible.