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Bewertung und Feedback des Lernenden für Getting and Cleaning Data von Johns Hopkins University

7,885 Bewertungen
1,295 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....


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.

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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351 - 375 von 1,258 Bewertungen für Getting and Cleaning Data

von ajay s

17. Okt. 2017

Great course to get started on a career track to be a data scientist.

von Atman B

1. Apr. 2019

This course is one important step towards becoming a Data Scientist.

von Ji H W

31. Juli 2018

Great lecture and help understanding concepts throughout the lecture

von Juan C L T

13. Okt. 2017

great course, very useful and insightful; challenging final project.

von Dhrubajyoti M

16. Mai 2017

Course material is good, assignment is better, mentors are the best!

von Осипов К Ю

21. Jan. 2020

Perfect practical course! I got a lot of good practices and skills!

von Bojan B

14. Okt. 2018

Great course with great materials. Easy to understand and to learn.

von Dr. B M

17. Jan. 2022

Excellent course. This course is seriously exciting throughout !!!

von antonio q

19. Dez. 2017

very clear, many examples and good exercise, assignments

thank you

von Emily K

9. Nov. 2017

Should be before the 'R Programming' course - eases you in nicely.

von Jesus L S

24. Okt. 2016

a must have course before applying any math model to our data! :-)

von Christophe K

10. Feb. 2020

Very good course and first real challenge in this specialization.

von Wellintton P

12. März 2018

great class for anyone learning the R language and data analytics

von Himanshu S

28. Dez. 2017

Really good for folks, who wants to learn data manipulations in R

von Channaveer P

23. Juli 2017

Good one.... teaches you good skills to handle data and stress :)

von Shuo C

21. Feb. 2018

This whole specialization is very informative! Highly recommend!

von Andreina D S

9. Apr. 2019

Muy interesante, bastante información y todo muy bien explicado

von Gaalle A A P M P

22. Jan. 2018

Thank you very much for letting me do this course. Learned alot

von duoruishi

29. Okt. 2017

It's a useful course but the final assignment is real hard hah.

von Noah B

26. Apr. 2016

Solid fundamentals gained from this course on data manipulation

von Denise O

16. März 2016

Great use of R. It really helped solidify what I learned there.

von Ellen B

2. Juli 2018

Very nice course, and clear how to do it. I like it very much!

von Sanjay L

16. Mai 2018

Good Course. It gives an idea on how to prepare tidy data set.

von Shashank S N K

31. Jan. 2018

It is great to know how the cleaning process is performed in R

von Frank O

24. Juni 2021

Extremely well designed. The knowledge is very well imparted.