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

7,930 évaluations
1,311 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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376 - 400 sur 1,275 Avis pour Obtenir et trier des données

par duoruishi

29 oct. 2017

It's a useful course but the final assignment is real hard hah.

par Noah B

26 avr. 2016

Solid fundamentals gained from this course on data manipulation

par Denise O

16 mars 2016

Great use of R. It really helped solidify what I learned there.

par Ellen B

2 juil. 2018

Very nice course, and clear how to do it. I like it very much!

par Sanjay L

16 mai 2018

Good Course. It gives an idea on how to prepare tidy data set.

par Shashank S N K

31 janv. 2018

It is great to know how the cleaning process is performed in R

par Frank O

24 juin 2021

Extremely well designed. The knowledge is very well imparted.

par Michele F

27 juin 2019

The best course I have already done about data preprocessing!

par Vinicio D S

20 nov. 2017

Great course for getting to know different places to get data

par Shri P S

3 août 2017

Very nice and highly recommended training or data scientists.

par Giridhar C

15 mai 2017

most important course for simple cleaning pls dont omit swirl

par Sam Z

12 déc. 2016

This is a great course! I like it. It really helped me a lot.

par Rafael H G

21 mars 2016

Good course to learn how to use R to getting and clening data

par Juan A J R

20 mai 2017

great starting in the pain of getting data ready to analysis

par Garlapati A

21 mai 2020

I learnt so much through this.Its a good platform to learn.

par Abdifitah A S

20 mai 2020

The course was very good basic of how to analyse data in R.

par David S

4 févr. 2019

Better than R Programming. Still very hard, but worthwhile.

par Rishabh J

22 août 2017

The course project was a good exposure to untidy data sets.

par Apurv S

13 mars 2017

great course... feel more confident with data analysis....

par Eduardo C

29 juil. 2021

muy buenas bases para el tema de Getting and Cleaning Data

par Pablo d A S

22 sept. 2019

Very well thought out and more advanced than previous one.

par Andrew

27 févr. 2019

Excellent course on using R for getting and cleaning data.

par Vebashini N

14 nov. 2017

Thank you, i learnt a lot and will continue on my journey.

par Amy B

4 juin 2017

Excellent class, lectures and assignments matched up well.

par Rafael C

4 févr. 2017

Very practical and demanding. That's how you really learn!