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.
By João A P B•
Feb 25, 2017
Amazing course! Even after a few years using R in a daily basis, I still learned quite a bit of new / useful information.
By David R•
Sep 03, 2018
Great course covering a wide range of data types likely to be encountered in the field of data science. Well explained.
By Anne M•
Jan 10, 2016
Really great class. I found the lectures easy to follow. The quizzes and homework helped me master the course material.
By Andrés H V•
Jun 28, 2020
I believe it was a very good course ,challenging and interesting. As a beginner in Data Science and R I learned a lot.
By Cathryn S•
Jan 02, 2017
A good course, which helped me understand how to get data off the web and from other sources, and improved my R skills
By FARZAD R•
Feb 26, 2017
This course is very interesting, useful and practical
I appreciate for all of efforts of my professors in this course
By Pitchayen S•
Feb 15, 2017
Very fundamental things that all data scientist must learn. You will know how useful of data.table and dplyr package.
By Anastasia T•
Oct 19, 2016
Interesting, challenging course. Opened lots of questions to the topic and gave a good direction to find the answers.
By Cristóbal A•
Apr 03, 2016
Entrega conceptos y herramientas útiles. El material es de buena calidad y es presentado de una forma bastante clara.
By Suryadipta D•
Mar 28, 2018
Very simple and introductory course that teaches the concepts really well. Forms a brilliant specialization course.
By Steven C•
Mar 15, 2017
Great coverage of useful R libraries for retrieving and tidying up data, and difficult but valuable course project.
Mar 23, 2016
Very good class for a beginner. Helps become more comfortable with R programming and aspects of getting data into R
By Vivek G•
Nov 09, 2019
Challenging course for working professionals from time perspective but very educative and useful. I learned a lot.
By vipin j•
Nov 20, 2018
A must take course for data science carrer... Very good concept explaination with really good hands on with Swirl.
By Philip S•
Jul 09, 2018
Excellent survey of data cleaning methods, good grounding in tidyverse tools, builds nicely on previous 2 courses.
By Matheus L N•
Jun 06, 2018
was a hard module for whose isn't a programmer, but was well done structureted to easy learning with hard studying
By Ayush J•
Apr 18, 2018
Many tricks and tips tools, many good functions. its really way completing my need on R at initial level i needed.
By Ekta R•
Jun 27, 2017
I am very much enjoyed the course. However, a lot of dedication is required as a beginner to complete this course.
By Aman G•
Jun 15, 2017
Really helped me learn the different sources of acquiring data into R and methods to transform data into tidy data
By Francisco M•
Jul 12, 2020
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•
Jun 06, 2020
Each quiz made me learn something new. The final assignment was just the right amount of challenge for a MOOC.
By Amy B P•
May 25, 2019
The assignment was quite challenging bu the course overall was very good. The course was structured very well.
By Marcus V M d S•
May 29, 2017
Learned a lot, manipulating real data sets to produce "tidy" data sets, suitable for analysis. A great course!
By VIVEK R•
Jun 05, 2016
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•
Jun 12, 2019
Excellent course. I've already used some of the techniques learned here. It's very applicable to those in o