Chevron Left
Voltar para Obtenção e Limpeza de Dados

Comentários e feedback de alunos de Obtenção e Limpeza de Dados da instituição Universidade Johns Hopkins

7,938 classificações
1,314 avaliações

Sobre o curso

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....

Melhores avaliações


2 de mai de 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 de out de 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.

Filtrar por:

351 — 375 de 1,277 Avaliações para o Obtenção e Limpeza de Dados

por Juan C I S

26 de jul de 2020

Great choice if you want to learn to manage and download datasets in R

por Filipe M d L

19 de jun de 2020

Besides the problem with some missing links, the content is excellent.

por Siria S

8 de fev de 2018

Nice, course. I learn a lot of skills I need for my job and university

por Jhon A P J

8 de dez de 2016

Excellent course, I would like to see more content about cleaning data

por Rose G

31 de mar de 2020

Everything was new for me in this course, so I loved learning so much

por Ussia N

9 de jul de 2019

Equiping me with the skills for my data science career...excellent !!

por jagadeesh p

20 de fev de 2019

The course material is helpful enough to deploy skills in my research

por 20e

16 de nov de 2017

learning a lot! And my post in the forum got helpful reply very soon!

por Ajay S

17 de out de 2017

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

por Atman B

1 de abr de 2019

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

por Ji H W

31 de jul de 2018

Great lecture and help understanding concepts throughout the lecture

por Juan C L T

13 de out de 2017

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

por Dhrubajyoti M

16 de mai de 2017

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

por Осипов К Ю

21 de jan de 2020

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

por Bojan B

14 de out de 2018

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

por Dr. B M

17 de jan de 2022

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

por antonio q

19 de dez de 2017

very clear, many examples and good exercise, assignments

thank you

por Emily K

9 de nov de 2017

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

por Jesus L S

24 de out de 2016

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

por Christophe K

10 de fev de 2020

Very good course and first real challenge in this specialization.

por Wellintton P

12 de mar de 2018

great class for anyone learning the R language and data analytics

por Himanshu S

28 de dez de 2017

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

por Channaveer P

23 de jul de 2017

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

por Shuo C

21 de fev de 2018

This whole specialization is very informative! Highly recommend!

por Andreina D S

9 de abr de 2019

Muy interesante, bastante información y todo muy bien explicado