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.
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.
por Xun Y•
Great course, providing very useful information. It might be better to provide few examples for codebook and readme files.
por João A P B•
Amazing course! Even after a few years using R in a daily basis, I still learned quite a bit of new / useful information.
por David R•
Great course covering a wide range of data types likely to be encountered in the field of data science. Well explained.
por Anne M•
Really great class. I found the lectures easy to follow. The quizzes and homework helped me master the course material.
por Andrés H V•
I believe it was a very good course ,challenging and interesting. As a beginner in Data Science and R I learned a lot.
por Cathryn S•
A good course, which helped me understand how to get data off the web and from other sources, and improved my R skills
por Nelson S S•
Muchas gracias por compartir sus conocimientos y el gran aporte que hacen en éstas épocas de pandemia
por FARZAD R•
This course is very interesting, useful and practical
I appreciate for all of efforts of my professors in this course
por Pitchayen S•
Very fundamental things that all data scientist must learn. You will know how useful of data.table and dplyr package.
por Anastasia T•
Interesting, challenging course. Opened lots of questions to the topic and gave a good direction to find the answers.
por Cristóbal A•
Entrega conceptos y herramientas útiles. El material es de buena calidad y es presentado de una forma bastante clara.
por Suryadipta D•
Very simple and introductory course that teaches the concepts really well. Forms a brilliant specialization course.
por 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
por Vivek G•
Challenging course for working professionals from time perspective but very educative and useful. I learned a lot.
por Vipin J•
A must take course for data science carrer... Very good concept explaination with really good hands on with Swirl.
por Philip S•
Excellent survey of data cleaning methods, good grounding in tidyverse tools, builds nicely on previous 2 courses.
por Matheus L N•
was a hard module for whose isn't a programmer, but was well done structureted to easy learning with hard studying
por ayush j•
Many tricks and tips tools, many good functions. its really way completing my need on R at initial level i needed.
por Ekta R•
I am very much enjoyed the course. However, a lot of dedication is required as a beginner to complete this course.
por Aman G•
Really helped me learn the different sources of acquiring data into R and methods to transform data into tidy data
por 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.
por 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.
por Thomas G•
Each quiz made me learn something new. The final assignment was just the right amount of challenge for a MOOC.