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

4.5
Sterne
7,995 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.

See the videos for general presentation, but use the energy on the excersizes.

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1001 - 1025 von 1,296 Bewertungen für Getting and Cleaning Data

von Federico G

20. Aug. 2019

I think using python would have been a better option than R

von Prashant K

15. März 2018

Videos can be bit more detailed (similar to the R program)

von Hung P

3. Juni 2020

A little bit out-dated, but very useful. I learned a lot.

von Brett W

15. Sep. 2017

I liked this course, particularly with the SWIRL support.

von Andres M

18. Feb. 2016

Some thing were very dificult and i needed more research

von Erik P

28. Sep. 2016

Great Course!

The Course Project was really challenging.

von Nitin P

29. Jan. 2016

I thoroughly enjoyed the course project. Overall, It

von Raul M

18. Mai 2017

Very interesting and useful for improving knowledge

von Kelly M M

19. Juli 2017

Great course. Went a little fast, but they all do.

von Björn L

8. Juli 2019

Good course which covers quite a lot of material!

von 李俊宏

15. Sep. 2017

good! but I hope that Jeff can make more examples

von Laura B

18. Mai 2017

Good but needed more info to complete assigments.

von Shivanand R K

21. Juni 2016

Great and Excellent thoughts and course material.

von Yunfan T

28. Juli 2017

the course lecture is not enough for assignment

von Marina V V m

20. Dez. 2018

More swirl exercises! They are really helpful

von Manny R

10. Aug. 2017

Time consuming and Challenging but very good.

von Patrick B

19. Nov. 2019

Challenging assignment. Interesting material

von Gustavo P

26. Sep. 2018

Good course, but se subject, not so mutch...

von Alex s

28. Dez. 2017

The last project instructions were unclear.

von Mehul P

10. Sep. 2017

Nice explanation on cleaning data activity.

von Niranjan

22. Mai 2017

Great course materials!! Great effort!! :-)

von Marcos A V

15. Mai 2017

I've learned much about reading data in R!

von Daren T

8. Feb. 2016

was tougher than expected. i learnt a lot!

von Chong C F

7. Sep. 2016

Well pack, but could have more practice.

von Andrew K

9. Juni 2019

The class could have better uniformity.