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Avis et commentaires pour d'étudiants pour Obtenir et trier des données par Université Johns-Hopkins

7,939 évaluations

À propos du cours

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....

Meilleurs avis


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.


25 oct. 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.

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501 - 525 sur 1,278 Avis pour Obtenir et trier des données

par Daniel R

19 févr. 2016

Great! And the project is wonderful!

par Faiz A

9 janv. 2021

very good and understandable course

par Ritu A H

13 juin 2020

superb course , learn a lot from it

par Judith W

14 mai 2020

A challenging, but rewarding course

par Diego B

10 avr. 2019

Really constructive and nice course

par Greg V

6 mars 2019

A very practical and useful course!

par Mehmet G I

7 mai 2018

It was challanging and informative.

par Subramanya N

12 déc. 2017

Nice course. Learnt a lot of tricks

par Germán A F G

6 déc. 2017

very difficult, but I learned a lot

par Chinmoy D

9 sept. 2017

nice and quite informative course !

par Helvio M

14 avr. 2017

Good course, worse the time I spent

par Bharadwaj D

4 janv. 2017

Absolutely Necessary course this!!!

par Gabriel V O G

22 févr. 2021

Im 100% satisfied with the course.

par Mateo E L

18 juil. 2020

Great course, I really enjoyed it!

par Kunal K

19 mai 2020

It's a great start to Data Science

par Klever M

25 janv. 2019

Great course. I really enjoyed it!

par Raghu P M

5 nov. 2018

Very nice presentation of concepts

par Gustavo C G

23 oct. 2018

Excellent knowledge and instructor

par Ken W

11 déc. 2017

Applied what I learned from day 1.

par Ng Y H J

4 janv. 2017

A very nice and structural course.

par Ricardo M S

3 juil. 2016

Awesome material and lots to learn

par Yergali B

16 mars 2016

very useful course for making data

par Lam L D

28 juin 2020

a course for every data scientist

par Luis F R A

1 août 2019

Learned a lot. Thank you so much!

par Cynthia M P

25 janv. 2019

I learned so much in this course!