Chevron Left
Вернуться к Сбор и сортировка данных

Отзывы учащихся о курсе Сбор и сортировка данных от партнера Университет Джонса Хопкинса

Оценки: 7,886
Рецензии: 1,295

О курсе

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....

Лучшие рецензии

2 мая 2020 г.

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 февр. 2016 г.

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.

Фильтр по:

1026–1050 из 1,258 отзывов о курсе Сбор и сортировка данных

автор: Fabio P

14 окт. 2017 г.

A good course

автор: Sabawoon S

28 июня 2017 г.

Very helpful.

автор: Venkata N K T

10 мая 2016 г.

Very valuable

автор: Ted S

31 янв. 2016 г.

Great course.

автор: Harsha G

3 мар. 2016 г.

very helpful

автор: GIORGOS A

26 мая 2019 г.

good course

автор: M C

22 янв. 2021 г.

Pretty OK

автор: Greg B G

3 окт. 2016 г.

very good

автор: Khobindra N C

18 мая 2016 г.


автор: Luiz C

16 сент. 2017 г.


автор: Nithya M

23 июня 2017 г.


автор: Shreya S

20 мар. 2017 г.


автор: Veena M

21 февр. 2016 г.


автор: Chuang M

6 февр. 2016 г.


автор: Marcos A

12 мая 2019 г.


автор: Nithin k G

16 нояб. 2018 г.


автор: Ashish S

6 февр. 2017 г.


автор: shipra g

8 авг. 2016 г.


автор: Vivek R

7 февр. 2016 г.


автор: Mrunal 1

8 мая 2021 г.


автор: Dimitri d

23 февр. 2017 г.


автор: Sergio R

27 нояб. 2016 г.


автор: sugyoo

22 окт. 2016 г.


автор: Borja C

7 мая 2016 г.


автор: Miguel C

25 мар. 2020 г.

I really enjoyed and learned a lot in this course.

I feel a lot more comfortable with looking for and reading data. I learned how to clean data and getting it ready for further analysis. I think the course project was particularly good for completely understanding the process of tidying data and all the aspects it involves, such as writing a code book and a README file for accompanying it.

Furthermore, I believe I further developed my R programming skills, by learning how to code new things or things I already knew but in a more efficient way, by using new packages and techniques.

Moreover, I found Professor Jeffrey Leek quite engaging, very easy to understand and I had complete confidence in his knowledge on this subject.

However, I believe the course is slightly outdated. I was often disheartened and frustrated by not being able to replicate what was being done in the lecture videos. For example, there were many links that did not work anymore and sometimes information that simply wasn't correct anymore. I found the discussion forums and many mentors responses to be very helpful. I think this can easily be fixed by writing up an errata or updating the lecture videos.