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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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8,072 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

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.

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.

筛选依据：

1301 - Getting and Cleaning Data 的 1314 个评论（共 1,314 个）

创建者 Indraneel B

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May 1, 2016

Description of assignment questions is not clear. The expected answer from the questions are confusing.

创建者 Sreevalsan M

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Jun 17, 2020

The peer grading looks weird. I got a comment on my original work "seemed to be not written by me".

创建者 Tom

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Jun 7, 2017

final project is terribly defined. Lecturers, Coursera, and Johns Hopkins should all be ashamed.

创建者 Josh H

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Oct 25, 2017

Very scattered and unfocused course. Sad to say that I learned very little from this one.

创建者 Jessica B

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Oct 28, 2025

Terribly outdated, please find a more up to date course if you want to be employable

创建者 abhishek s

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Feb 25, 2016

This is just because of the unclarity of the final assignment.

创建者 Ian H

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Apr 12, 2018

Terrible! Go to Data Camp and save a bunch of money!!!!

创建者 Ahmed H E

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Aug 29, 2019

the learning way in this course was bad, to me

创建者 babak k

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Jan 9, 2019

It is more about R rather than data science

创建者 Du Z

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Aug 30, 2017

Poor teaching! Almost a waste of time.

创建者 JaeHyun L

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Nov 4, 2018

I don't think it's necessary lecture

创建者 Ankit A

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Dec 13, 2016

lectures are too fast.dropping out.

创建者 Danil B

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Jun 12, 2023

Significantly outdated material

创建者 Alexandros T

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Aug 5, 2016

Poorly constracted course!