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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

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.

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.

筛选依据：

1051 - Getting and Cleaning Data 的 1075 个评论（共 1,313 个）

创建者 Laurent R

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May 16, 2019

Good courses, I learned a lot!

创建者 Amanyiraho R

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Jan 13, 2020

Best data cleaning technique.

创建者 Nicholas C

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May 29, 2019

Too much outdated content.

创建者 Fernando M

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Sep 4, 2017

Really important tools!!

创建者 César A C

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Jun 5, 2017

Very interesting course.

创建者 Chirag R

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Jun 28, 2019

Good course. Thank you!

创建者 Sisi H

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Sep 9, 2019

Overall a solid class

创建者 Seunghak J

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Jun 4, 2017

Very practical course

创建者 Raghu K V

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Jan 13, 2016

Good course this...

创建者 Amit S

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Nov 1, 2019

Very good content

创建者 Federico J D F

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Mar 24, 2021

very challenging

创建者 Fernando S

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Mar 31, 2016

Excellent course

创建者 Rohit K S

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Sep 20, 2020

Nice Course!!

创建者 Lau I L

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Aug 17, 2018

A lot of work

创建者 Fabio P

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Oct 14, 2017

A good course

创建者 Sabawoon S

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Jun 28, 2017

Very helpful.

创建者 Venkata N K T

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May 10, 2016

Very valuable

创建者 Ted S

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Jan 31, 2016

Great course.

创建者 Harsha G

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Mar 3, 2016

very helpful

创建者 Giorgos A

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May 26, 2019

good course

创建者 M C

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Jan 22, 2021

Pretty OK

创建者 Greg B G

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Oct 3, 2016

very good

创建者 Khobindra N C

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May 18, 2016

Excellent

创建者 Luiz C

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Sep 16, 2017

Useful

创建者 Nithya M

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Jun 23, 2017

Great!