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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
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

CW

Aug 6, 2020

I think that the level of difficulty of the exercises and final assignment does not match with the depth of the lectures; without a textbook, I feel lost, don't have a reference, and have to guess.

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:

1001 - Getting and Cleaning Data 的 1025 个评论(共 1,313 个)

创建者 Hiva P

Feb 26, 2018

for me the instruction for peer review exercises was not very clear

创建者 Joshua K

Nov 13, 2020

The course project is too vague. Perhaps this is done on purpose.

创建者 JUYU K

Jun 9, 2019

The project/assignment sometimes is not too clear on what to do.

创建者 Naveen S

Aug 16, 2018

The course content must be more in-depth for auditing the course.

创建者 Hoang H N

Jan 23, 2017

Provide a good introduction to getting data and processing them.

创建者 Andrew W

Mar 19, 2018

Great course for diving deeper into the R programming language.

创建者 Marcelo G

Aug 14, 2016

Very well elaborated. Very useful and real exercises and tools.

创建者 Ashish S

May 17, 2016

This would be very effective for my personal skill enhancement.

创建者 조혜령

Aug 10, 2019

기본적인 내용을 다루어 주어서 좋았습니다.

조금 속도가 빠르긴 했지만, 좋은 강의였다고 생각합니다.

수고하셨습니다.

创建者 Joseph F

Dec 18, 2020

Great course! Now I think I know how to make a tidy data set!

创建者 Yue Z

Feb 9, 2018

Great course but do not offer sufficient practical exercises.

创建者 Ankush K

May 31, 2017

Not the most exciting course, but definitely worth it/needed.

创建者 Jayce L

Oct 10, 2016

in my opinion, with more details, we could learn more about R

创建者 Federico G

Aug 20, 2019

I think using python would have been a better option than R

创建者 Prashant K

Mar 15, 2018

Videos can be bit more detailed (similar to the R program)

创建者 Hung P

Jun 3, 2020

A little bit out-dated, but very useful. I learned a lot.

创建者 Brett W

Sep 15, 2017

I liked this course, particularly with the SWIRL support.

创建者 Andres M

Feb 18, 2016

Some thing were very dificult and i needed more research

创建者 Erik P

Sep 28, 2016

Great Course!

The Course Project was really challenging.

创建者 Nitin P

Jan 29, 2016

I thoroughly enjoyed the course project. Overall, It

创建者 Raul M

May 18, 2017

Very interesting and useful for improving knowledge

创建者 Kelly M M

Jul 19, 2017

Great course. Went a little fast, but they all do.

创建者 Björn L

Jul 8, 2019

Good course which covers quite a lot of material!

创建者 李俊宏

Sep 15, 2017

good! but I hope that Jeff can make more examples

创建者 Laura B

May 18, 2017

Good but needed more info to complete assigments.