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学生对 Johns Hopkins University 提供的 Getting and Cleaning Data 的评价和反馈

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8,070 个评分

课程概述

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....

热门审阅

BD

Oct 25, 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.

HS

May 2, 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.

筛选依据：

526 - Getting and Cleaning Data 的 550 个评论（共 1,313 个）

创建者 Mateo E L

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Jul 18, 2020

Great course, I really enjoyed it!

创建者 Kunal K

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May 19, 2020

It's a great start to Data Science

创建者 Klever M

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Jan 25, 2019

Great course. I really enjoyed it!

创建者 Raghu P M

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Nov 4, 2018

Very nice presentation of concepts

创建者 Gustavo C G

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Oct 23, 2018

Excellent knowledge and instructor

创建者 Ken W

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Dec 11, 2017

Applied what I learned from day 1.

创建者 Ng Y H J

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Jan 4, 2017

A very nice and structural course.

创建者 Ricardo M S

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Jul 3, 2016

Awesome material and lots to learn

创建者 Yergali B

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Mar 16, 2016

very useful course for making data

创建者 Lam L D

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Jun 28, 2020

a course for every data scientist

创建者 Luis F R A

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Aug 1, 2019

Learned a lot. Thank you so much!

创建者 Cynthia M P

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Jan 25, 2019

I learned so much in this course!

创建者 Rajat V

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Jun 7, 2018

needs improvement and upgradation

创建者 icu

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Mar 25, 2018

The volume of vice sounds to low.

创建者 Manuel E E M

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Nov 9, 2017

Ayuda mucho a manejar data frames

创建者 Suriya

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Nov 1, 2017

This course covers the essential

创建者 Jeff H

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Jul 19, 2017

learned a lot about cleaning data

创建者 Tatyana L

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Sep 29, 2016

Thank you, it was very practical!

创建者 郑俊（Jun Z

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Jun 21, 2016

Have challenges, but very useful!

创建者 YASSINE M

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Nov 27, 2020

good course with an easy English

创建者 Courtney P

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Jul 17, 2019

Very useful and enjoyable course

创建者 Olga S

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Aug 29, 2018

I learned so much! Great course.

创建者 Xiuyuan L

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Mar 22, 2018

Good class. Learn a lot from it.

创建者 Marouan K

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Jan 2, 2018

Very hard class, learned a lot !

创建者 Luv K

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Jul 12, 2020

the finest course on this topic