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

4.5
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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

RR

Jul 9, 2017

I found the last project insufficiently explained. I was struggling in understanding what the task is. A bit more clear task description (as in Course 2) would be really appreciated.

WC

Oct 31, 2016

This course is amazing! I have spent the majority of my time in R merely doing analytics. This course taught me the tools needed to go out and grab the data that I need for those analytics.

筛选依据：

701 - Getting and Cleaning Data 的 725 个评论（共 1,313 个）

创建者 Deliang L

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Jul 11, 2017

Very helpful.

创建者 henri b

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Jul 4, 2017

très complet

创建者 Dennis L

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Jun 19, 2017

Good content!

创建者 Jay S

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May 30, 2017

Great course!

创建者 Vinay K

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Sep 28, 2016

Great Course.

创建者 Jiawen C

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May 4, 2016

Great course!

创建者 udbodh s

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May 2, 2016

Powerful tool

创建者 Davi C

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Feb 29, 2016

Learnt a lot!

创建者 Robert N

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Feb 9, 2016

Very helpful.

创建者 Mónica C

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Jul 31, 2020

Very usefull

创建者 Heidi P

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Sep 25, 2019

Challenging!

创建者 Onedio S S J

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Jul 13, 2019

Excelent!!!!

创建者 Tushar M

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Feb 25, 2019

Nice course.

创建者 gerson d o

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Jan 17, 2019

EXCELENTE!!!

创建者 Razib A K

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Oct 21, 2018

Very helpful

创建者 Ganesh R

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Sep 4, 2018

Nice Course.

创建者 César S

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Sep 2, 2018

Good course!

创建者 shashwat k

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Aug 18, 2018

good course.

创建者 Ramya S

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May 19, 2018

Great Course

创建者 Craig S

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Oct 22, 2017

Really good!

创建者 Dharmendra P

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Aug 23, 2017

Great Course

创建者 박기중

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Aug 19, 2017

Good course.

创建者 Reem S

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Jan 7, 2017

Very helpful

创建者 kamez 0

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Dec 18, 2016

Insightful !

创建者 João P S

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Aug 15, 2016

Nice course!