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.
This course is really a challenging and compulsory for any one who wants to be a data scientist or working in any sort of data. It teaches you how to make very palatable data-set fro ma messy data.
By FARZAD R•
This course is very interesting, useful and practical
I appreciate for all of efforts of my professors in this course
By Pitchayen S•
Very fundamental things that all data scientist must learn. You will know how useful of data.table and dplyr package.
By Anastasia T•
Interesting, challenging course. Opened lots of questions to the topic and gave a good direction to find the answers.
By Cristóbal A•
Entrega conceptos y herramientas útiles. El material es de buena calidad y es presentado de una forma bastante clara.
By Suryadipta D•
Very simple and introductory course that teaches the concepts really well. Forms a brilliant specialization course.
By Steven C•
Great coverage of useful R libraries for retrieving and tidying up data, and difficult but valuable course project.
Very good class for a beginner. Helps become more comfortable with R programming and aspects of getting data into R
By Vivek G•
Challenging course for working professionals from time perspective but very educative and useful. I learned a lot.
By Vipin J•
A must take course for data science carrer... Very good concept explaination with really good hands on with Swirl.
By Philip S•
Excellent survey of data cleaning methods, good grounding in tidyverse tools, builds nicely on previous 2 courses.
By Matheus L N•
was a hard module for whose isn't a programmer, but was well done structureted to easy learning with hard studying
By Ayush J•
Many tricks and tips tools, many good functions. its really way completing my need on R at initial level i needed.
By Ekta R•
I am very much enjoyed the course. However, a lot of dedication is required as a beginner to complete this course.
By Aman G•
Really helped me learn the different sources of acquiring data into R and methods to transform data into tidy data
By Medha B•
Really great course and i feel a necessary one as it connects and covers many points of the previous 2 courses.
the course provide useful functions and methods and tell us why we should use them in a way easy to understand.
By Francisco M•
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•
Each quiz made me learn something new. The final assignment was just the right amount of challenge for a MOOC.
By Amy B P•
The assignment was quite challenging bu the course overall was very good. The course was structured very well.
By Marcus V M d S•
Learned a lot, manipulating real data sets to produce "tidy" data sets, suitable for analysis. A great course!
By VIVEK R•
Its really help me a lot to build up my basic concept and now data wrangling is quit bit easy for me.
By William B B•
Excellent course. I've already used some of the techniques learned here. It's very applicable to those in o
By Ritayan G•
At first sight seemed very easy but the assignments and quizzes are really challenging. Overall nice course.
By Deyban P•
Great course, you learn a lot of ways to find data and improve other skills as regex and the use of "dplyr".
Take it twice if needed, do not go pass this point until the science behind this course is well understood.