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

4.5
étoiles
7,881 évaluations
1,293 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

HS
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.

DH
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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1251 - 1257 sur 1,257 Avis pour Obtenir et trier des données

par Ian H

12 avr. 2018

Terrible! Go to Data Camp and save a bunch of money!!!!

par Ahmed H E

29 août 2019

the learning way in this course was bad, to me

par BabaK K

9 janv. 2019

It is more about R rather than data science

par Du Z

30 août 2017

Poor teaching! Almost a waste of time.

par JaeHyun L

5 nov. 2018

I don't think it's necessary lecture

par Ankit A

13 déc. 2016

lectures are too fast.dropping out.

par Alexandros T

5 août 2016

Poorly constracted course!