Avis et commentaires pour d'étudiants pour Obtenir et trier des données par Université Johns-Hopkins
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Meilleurs avis
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.
276 - 300 sur 1,258 Avis pour Obtenir et trier des données
par Carlos M
•Very interesting material and basic knowledge on R to read files and produce tidy data
par GAGAN G
•Very nice courses in coursera and fundamental concept are very helping for us. Clear.
par Tomas M
•Excellent course mates! Lots & lots of very useful info & examples! Thanks so much!!!
par Dmytro I
•It's a great course, however, explanations to the final assignment were rather vague.
par sambit c
•A great course. Learned a lot. However student has to put an extra effort practicing.
par Kseniia K
•Great course, more difficult than previous two, but also more challenging and useful!
par Wang J
•Great practice for R programming and the MySQL part is extremely helpful for my work.
par leo n
•This is the best course so far. Very challenging project at the end. I learned a lot
par Jorge A B J
•Very nice course! Would defensively recommend to anyone seeking this specialization!
par Puja G
•Very useful to get hands on experience in data science to solve real world problems!
par Stephen A
•This course gives all necessary foundations to kick start getting and cleaning data
par Abay J
•Love quizzes and a course project. Working on them develops you as a data scientist
par Ajendra S
•I really liked this course. This course helped me to understand the data wrangling.
par Tiago P F
•Excellent course, with a very important focus on documentation and code versioning.
par jutzhang
•建议更新课程中所涉及函数的使用方法
Please update the using methods of some functions in this lecture.
par Andaru
•90% of data science is cleaning, this really gets people accepting that key concept
par Luz M S G
•It was an excellent course. It was challenging but I enjoyed it and learnt a lot.
par Vitalii S
•This course gave me an insights regarding data cleaning. Very grateful, thank you!
par Karthic C
•Well put together course. Happy and eager to finish the rest of the specialization
par Thor R
•Useful, the course is as much an introduction to R- part 2 as about cleaning data
par Raunak S
•excellent course to get started with to learn the basic concepts of data tidying.
par Sunder R V
•Enjoyed the course and learnt quite a few things in my quest for "Data Analytics"
par Roberto D
•Very useful for deciding best methods pulling data and consistently massage data.
par Jairo A V G
•an excellent course that allowed me to expand my knowledge and learn new things.
par Premkumar S
•Excellent course with some great exercises put together that are very practical.
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