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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：

451 - Getting and Cleaning Data 的 475 个评论（共 1,313 个）

创建者 Melanie B

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Feb 21, 2018

All started coming together for me in this course!

创建者 Laurent b

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Feb 9, 2018

Very dense course and a lot of things explained...

创建者 Hawk G

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Jan 17, 2017

Very good introduction in advanced R capabilities.

创建者 Trung N T

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Nov 7, 2016

We have good course, thank you very much, teacher!

创建者 Carlos R R

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May 8, 2017

Thank you for the coruse. It's a very good course

创建者 Nishan M

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Oct 16, 2016

Great course for a budding data analyst/scientist

创建者 Yang L

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Aug 15, 2016

Brief instroduction of getting and cleaning data.

创建者 Toni R

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Mar 6, 2016

This was an incredibly useful and amazing course!

创建者 Varun C

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Apr 16, 2020

Well Designed course with Good level of Projects

创建者 Servet D

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Aug 27, 2019

I learned why cleaning data is important. Thanks

创建者 Marina K

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May 17, 2019

This course was very helpful and easy to follow.

创建者 oscar l

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Sep 12, 2017

excelente curso claro, completo y muy dinámico.

创建者 Henrique A

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Nov 27, 2016

Great course! I learned a lot from it! Thanks!!!

创建者 Giri b

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Apr 3, 2016

A good course for dealing with different types o

创建者 Meri A

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Jun 17, 2019

I find it very challenging and I learned a lot.

创建者 Royce S

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Oct 11, 2018

Very useful content and challenging assignments

创建者 Laro N

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Mar 10, 2018

Good, like other courses of this specialization

创建者 Connor B

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Aug 5, 2019

Great next step and enjoyed the course project

创建者 Naveen S

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Dec 10, 2020

Good course to understand the data processing

创建者 vijaygopal

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Sep 11, 2017

The course is great for beginners. Thank you!

创建者 Sean

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Nov 14, 2019

Challenging but rewarding! Great community.

创建者 Janet A R

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Dec 27, 2018

Thanks!!! It opened a whole new world to me!

创建者 Abdullah

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Feb 8, 2018

thank very much and this is very good course

创建者 Juliana C

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Sep 25, 2017

Great course to learn how to manipulate data