Chevron Left
Retour à Obtenir et trier des données

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

7,995 évaluations

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.

Filtrer par :

251 - 275 sur 1,296 Avis pour Obtenir et trier des données

par Pieter v d V

29 janv. 2018

Tells you the clean data standards and how to transmute data to fit the description. Very accessible.

par Muhammet A

21 avr. 2019

I wholeheartedly enjoyed this course. It goes from very simple, to pretty advanced stuff at the end.

par Keidzh S

12 mars 2018

This course is absolutely fantstic education. More practice tasks will make it better in my opinion.

par Quiniou C

16 sept. 2017

This course is very interesting, we are starting to work on how to transform dataset into tidy data.

par Rohit A

12 juin 2019

Nice course to understand the deep insight in understanding the concept of the data cleaning in R.

par Asif M A

18 avr. 2016

A good start for data science course. It is very essential to cleanse data before start analyzing.

par Admet Z

7 nov. 2017

It was a bit harder, than Course 2 but still I was able to finish it and want to learn even more.

par Sravan K

28 mai 2017

It's very nice course and material is very good. The quiz is very challenging. Thanks to coursera

par Sreedharrao R

6 févr. 2016

Nitty gritty of organizing the data in to a form where it can be used for more complex analysis.

par Rosane H G

7 sept. 2020

Very good and hands-on course for those willing to work with database construction and analysis.

par juan p d

15 mai 2016

i apprecciate the learning by doing and the lot of support that the staff and classmates provide

par Manuel M M

9 sept. 2019

Very practical and useful. I really enjoyed doing the test and learning a lot of R programming

par Sérgio A V G P

6 juin 2016

Excelent course. It is a great oportunity to develop the aknowkedge in R and System analysis.

par Hector M

19 mai 2016

Great way to exercise and practice something that is often neglected in data science courses.

par Alfonso L

19 mars 2020

Need to take some time to learn. A lot of stuff in so short period of time but really worthy

par Hariharan D

13 juil. 2017

Excellent course. Interesting to learn through this experiential hands-on pedagogy approach.

par Rodrigo C

11 oct. 2017

Se enseña el uso de herramientas muy útiles a la hora de transformar raw data en tidy data.

par Jhon A R G

3 août 2020

Es un curso que no se hace pesado, ya que se explican las temáticas con mucha naturalidad.

par Thiago M

12 août 2019

Course material and projects help a lot in learning and improving data analysis techniques

par José E T

5 août 2017

Very good course. Taught at the correct depth. He added a lot of knowledge to my training.

par Eric F

6 nov. 2016

Excellent cours pour la mise en œuvre de méthodes robustes sur la préparation des données.

par Gayathri N

7 mai 2020

Good course that helped to get the skill of reading and different ways to work with Data.

par Сетдеков К Р

27 sept. 2018

Helped a lot form my understanding of a good workflow for data collection and processing.

par Lee W

4 oct. 2017

Great course to introduce you to the various methods of loading and processing data in R.

par Ryan H

23 sept. 2017

I really enjoyed this course. The instructors were good and the assignment was enjoyable.