学生对 Johns Hopkins University 提供的 Getting and Cleaning Data 的评价和反馈
课程概述
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HS
May 2, 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.
BD
Oct 25, 2016
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.
976 - Getting and Cleaning Data 的 1000 个评论（共 1,313 个）
创建者 Marco C
•Nov 27, 2017
Very good course. I would have liked to learn something about missing value treatment.
创建者 Alina S
•Oct 17, 2017
First two weeks were not really valuable for me, sorry. But the las two actually were.
创建者 Mauricio E F
•Aug 27, 2017
The videos are not so much related with the assigments but in overall is a good course
创建者 Karan R
•Jul 14, 2016
Sometimes get a bit boring, though the upcoming courses in the series are real-awesome
创建者 Ben K
•Apr 25, 2016
A reasonable course. Could use a little more focus on dynamically creating a codebook.
创建者 Nataliya R
•Dec 15, 2015
Very useful course. It's worth to add slides and to make sound of lectures bit louder.
创建者 ERNESTO L C
•Sep 26, 2020
Me han gustado mas los dos anteriores de la especialidad pero este tambien està bien
创建者 Yusong Z
•May 24, 2020
Learn lots of useful skills, but the lectures are just too quick to fully understand
创建者 Jigar P
•Apr 9, 2018
Things were vague when assignment was given but that actually helped me learn better
创建者 SHETU R
•Mar 21, 2019
Very vaguely explained.Not much information in the slides about the topics covered.
创建者 Marc S T
•Jan 3, 2017
Great lecture, easy to follow with R studio. Assignment are moderately challenging.
创建者 Lakshay S
•Jul 2, 2019
Course Project was nice.It made me revise the concepts taught in the entire course
创建者 Abdallh A
•Dec 17, 2019
Great content. Would have been better with more resources in addition to videos.
创建者 Shekhar B
•Mar 25, 2018
It was a nice experience to learn the cleaning part with library dplyr and tidyr
创建者 Ioannis S
•Mar 18, 2016
Maybe some more notes about the quizzes and the course project would be helpful.
创建者 Ryan B
•Mar 30, 2018
Excellent, though I found the wording for the final coursework quite confusing.
创建者 Thành N
•Nov 21, 2021
This course is amazing. But I hope there is some exercises instead of quizzes.
创建者 Fede N
•Feb 14, 2016
Course is great! Many examples are given on how to get data in various format.
创建者 Anush M
•Dec 12, 2016
Kind of slow in the beginning but picked up to the end to give me a challenge
创建者 Markus K
•Apr 1, 2016
The course was quite good, but the last assignment was really much too vague.
创建者 Praveen k
•Sep 9, 2018
good course to start with cleaning data and how to get data from resources.
创建者 Mike W
•Jan 16, 2018
Good overview of using R (and dplyr) to clean data into "tidy" dataframes.
创建者 Victor R
•Mar 28, 2016
Helpful, but more than half of the knowledge is in the swirl tutorial.
创建者 arrowif
•Feb 9, 2020
good course, if there are more text mining content, it will be better
创建者 Charlie d T
•Jun 24, 2017
some shortcuts on the viodes makes the replication of work difficult