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学生对 约翰霍普金斯大学 提供的 获取和整理数据 的评价和反馈

4.6
7,430 个评分
1,189 条评论

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 03, 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.

BE

Oct 26, 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:

276 - 获取和整理数据 的 300 个评论(共 1,149 个)

创建者 xiang

Mar 31, 2016

Nice one. I would like to have some more information like getting data from API

创建者 Gustavo d P P

Sep 13, 2019

Muito bom!

Aprendi a usar dplyr e agora minha vida se tornou muito mais fácil!!!

创建者 Yi-Yang L

Mar 08, 2017

Good! Actually I think this course is useful no matter what other people think.

创建者 Bruno

Jun 04, 2016

It's a good course, with right amount of exercises and well explained classes.

创建者 Prohnițchi V

Oct 02, 2017

Great course. Have learned a lot and discovered powerful tools and approaches.

创建者 Matthew

Feb 22, 2017

Solid course overall which covers in a high level many data gathering methods.

创建者 Bill K

Feb 10, 2016

Great course with good lectures and labs. Don't forget the swirl assignments!

创建者 Diego A Q

Jun 03, 2019

Very useful for every day data arrangements and data downloads from Internet.

创建者 Siva M

Dec 06, 2018

It is great time. The course content was amazing. I learnt lot of new things.

创建者 Joseph G N

Nov 05, 2018

The course has amazing exercise in every week. You can learn a lot with them.

创建者 Raphael P

Jun 23, 2018

I started with this course to understand the logic of ordering of the series.

创建者 Gustavo P F d X

Jan 15, 2017

Wonderful course for those who are keen on expand their knowledge n R skills.

创建者 Bruno K d O

Feb 17, 2016

Great course! The course content is very good and the length is appropriated.

创建者 Scott D

Dec 30, 2018

This course is great. The tactical skills in R you really need on the job.

创建者 Jessica R

Apr 03, 2018

Very useful course on how to prepare data so it can more easily be analyzed.

创建者 吴昊

Mar 03, 2018

Very helpful source. Introduce the basic and important concept of tidy data.

创建者 杜冈桃

Sep 08, 2017

Coursera is very practical and I am ready to continue to study more courses.

创建者 Catharine

Mar 17, 2017

Very helpful and practical course to learn about data sourcing and cleaning.

创建者 Juan C P A

Mar 28, 2016

Recommended for all who want to manage their data and not be handled by them

创建者 Eswara K

Jun 04, 2020

Great course. Only nitpick is that the volume of data to work with is huge.

创建者 Mevluet P

May 26, 2020

It is a very good course. It is my reference page and course about using R.

创建者 Michael P D

May 22, 2020

Provides great foundational knowledge of building usable data objects in R.

创建者 Jesson P

Oct 01, 2018

This course taught me the importance of tidying data suitable for analysis.

创建者 Mahmoud E

Oct 01, 2018

This course gives a great insight on how capable and versatile R language.

创建者 Jamie M

Jul 06, 2018

Excellent once again. I'm running out of superlatives. Great job Coursera.