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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.


1 févr. 2016

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.

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301 - 325 sur 1,273 Avis pour Obtenir et trier des données

par Premkumar S

27 sept. 2018

Excellent course with some great exercises put together that are very practical.

par xiang

31 mars 2016

Nice one. I would like to have some more information like getting data from API

par Waeibrorheem W

12 oct. 2020

It was an amazing learning experience. I really learn so much from this course.

par Gustavo d P P

13 sept. 2019

Muito bom!

Aprendi a usar dplyr e agora minha vida se tornou muito mais fácil!!!

par Yi-Yang L

8 mars 2017

Good! Actually I think this course is useful no matter what other people think.

par Bruno

4 juin 2016

It's a good course, with right amount of exercises and well explained classes.

par Prohnițchi V

2 oct. 2017

Great course. Have learned a lot and discovered powerful tools and approaches.

par Matthew

22 févr. 2017

Solid course overall which covers in a high level many data gathering methods.

par Bill K

10 févr. 2016

Great course with good lectures and labs. Don't forget the swirl assignments!

par Diego A Q

3 juin 2019

Very useful for every day data arrangements and data downloads from Internet.

par Siva M

6 déc. 2018

It is great time. The course content was amazing. I learnt lot of new things.

par Joseph G N

5 nov. 2018

The course has amazing exercise in every week. You can learn a lot with them.

par Raphael P

23 juin 2018

I started with this course to understand the logic of ordering of the series.

par Gustavo P F d X

15 janv. 2017

Wonderful course for those who are keen on expand their knowledge n R skills.

par Bruno K

17 févr. 2016

Great course! The course content is very good and the length is appropriated.

par Marco M

9 oct. 2020

Really good course! It could be even better with more labs in the beginning.

par Scott D

30 déc. 2018

This course is great. The tactical skills in R you really need on the job.

par Jessica R

3 avr. 2018

Very useful course on how to prepare data so it can more easily be analyzed.

par 吴昊

3 mars 2018

Very helpful source. Introduce the basic and important concept of tidy data.

par 杜冈桃

7 sept. 2017

Coursera is very practical and I am ready to continue to study more courses.

par Catharine

16 mars 2017

Very helpful and practical course to learn about data sourcing and cleaning.

par Juan C P A

28 mars 2016

Recommended for all who want to manage their data and not be handled by them

par Jeff D

10 oct. 2020

This a great course especially for a beginner like me. Thank you very much.

par Eswara K

4 juin 2020

Great course. Only nitpick is that the volume of data to work with is huge.

par Mevluet P

26 mai 2020

It is a very good course. It is my reference page and course about using R.