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Kursteilnehmer-Bewertung und -Feedback für Getting and Cleaning Data von Johns Hopkins University

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7,589 Bewertungen
1,224 Bewertungen

Über den Kurs

Before you can work with data you have to get some. This course will cover the basic ways that data can be obtained. The course will cover obtaining data from the web, from APIs, from databases and from colleagues in various formats. It will also cover the basics of data cleaning and how to make data “tidy”. Tidy data dramatically speed downstream data analysis tasks. The course will also cover the components of a complete data set including raw data, processing instructions, codebooks, and processed data. The course will cover the basics needed for collecting, cleaning, and sharing data....

Top-Bewertungen

HS
2. Mai 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.

DH
1. Feb. 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.

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276 - 300 von 1,184 Bewertungen für Getting and Cleaning Data

von jutzhang

26. Juni 2016

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.

von Andaru

12. Feb. 2016

90% of data science is cleaning, this really gets people accepting that key concept

von Luz M S G

29. Aug. 2020

It was an excellent course. It was challenging but I enjoyed it and learnt a lot.

von Vitalii S

20. Juli 2017

This course gave me an insights regarding data cleaning. Very grateful, thank you!

von Karthic C

17. Juli 2017

Well put together course. Happy and eager to finish the rest of the specialization

von Thor R

18. Jan. 2019

Useful, the course is as much an introduction to R- part 2 as about cleaning data

von Raunak S

4. Okt. 2018

excellent course to get started with to learn the basic concepts of data tidying.

von Sunder R V

27. Aug. 2017

Enjoyed the course and learnt quite a few things in my quest for "Data Analytics"

von Roberto D

21. Juni 2017

Very useful for deciding best methods pulling data and consistently massage data.

von Jairo A V G

25. Juni 2020

an excellent course that allowed me to expand my knowledge and learn new things.

von Premkumar S

27. Sep. 2018

Excellent course with some great exercises put together that are very practical.

von xiang

31. März 2016

Nice one. I would like to have some more information like getting data from API

von Waeibrorheem W

12. Okt. 2020

It was an amazing learning experience. I really learn so much from this course.

von Gustavo d P P

13. Sep. 2019

Muito bom!

Aprendi a usar dplyr e agora minha vida se tornou muito mais fácil!!!

von Yi-Yang L

8. März 2017

Good! Actually I think this course is useful no matter what other people think.

von Bruno

4. Juni 2016

It's a good course, with right amount of exercises and well explained classes.

von Prohnițchi V

2. Okt. 2017

Great course. Have learned a lot and discovered powerful tools and approaches.

von Matthew

22. Feb. 2017

Solid course overall which covers in a high level many data gathering methods.

von Bill K

10. Feb. 2016

Great course with good lectures and labs. Don't forget the swirl assignments!

von Diego A Q

3. Juni 2019

Very useful for every day data arrangements and data downloads from Internet.

von Siva M

6. Dez. 2018

It is great time. The course content was amazing. I learnt lot of new things.

von Joseph G N

5. Nov. 2018

The course has amazing exercise in every week. You can learn a lot with them.

von Raphael P

23. Juni 2018

I started with this course to understand the logic of ordering of the series.

von Gustavo P F d X

15. Jan. 2017

Wonderful course for those who are keen on expand their knowledge n R skills.

von Bruno K d O

17. Feb. 2016

Great course! The course content is very good and the length is appropriated.