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

7,923 évaluations
1,310 avis

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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426 - 450 sur 1,273 Avis pour Obtenir et trier des données

par Saurabh K

18 févr. 2017

Very useful and detailed summary of advance methods

par Marcus S S

21 janv. 2017

A good first step in order to manage big data sets!

par Fan M

7 janv. 2017

This course is little fast for me but real helpful.

par Samir G

29 déc. 2016

Not the funniest one but very useful !! thank you !

par 赵东昱

2 déc. 2016

This course is quite hard, but it's really great!!!

par Robert T

13 nov. 2016

Excellent information on getting and cleaning data.

par Melanie B

21 févr. 2018

All started coming together for me in this course!

par Laurent b

9 févr. 2018

Very dense course and a lot of things explained...

par Hawk G

17 janv. 2017

Very good introduction in advanced R capabilities.

par Trung N T

7 nov. 2016

We have good course, thank you very much, teacher!

par Carlos R R

8 mai 2017

Thank you for the coruse. It's a very good course

par Nishan M

16 oct. 2016

Great course for a budding data analyst/scientist

par Yang L

15 août 2016

Brief instroduction of getting and cleaning data.

par Alberto M T V

5 avr. 2016

Love the new strategies that learn in the course.

par Toni R

6 mars 2016

This was an incredibly useful and amazing course!

par varun C

16 avr. 2020

Well Designed course with Good level of Projects

par Servet D

27 août 2019

I learned why cleaning data is important. Thanks

par Marina K

17 mai 2019

This course was very helpful and easy to follow.

par oscar l

12 sept. 2017

excelente curso claro, completo y muy dinámico.

par Henrique A

27 nov. 2016

Great course! I learned a lot from it! Thanks!!!

par Giri b

3 avr. 2016

A good course for dealing with different types o

par Meri A

17 juin 2019

I find it very challenging and I learned a lot.

par Royce S

11 oct. 2018

Very useful content and challenging assignments

par Laro N P

10 mars 2018

Good, like other courses of this specialization

par Connor B

5 août 2019

Great next step and enjoyed the course project