Chevron Left
返回到 获取和整理数据

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

6,724 个评分
1,043 条评论


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....



Feb 02, 2016

Easy, mostly instructive Course. The Assignments and quizzes are quite good, and illustrates the lessons very well.\n\nSee the videos for general presentation, but use the energy on the excersizes.


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.


276 - 获取和整理数据 的 300 个评论(共 1,004 个)

创建者 Emily K

Nov 09, 2017

Should be before the 'R Programming' course - eases you in nicely.

创建者 Jesus L S

Oct 24, 2016

a must have course before applying any math model to our data! :-)

创建者 Christophe K

Feb 11, 2020

Very good course and first real challenge in this specialization.

创建者 Wellintton P

Mar 12, 2018

great class for anyone learning the R language and data analytics

创建者 Himanshu S

Dec 28, 2017

Really good for folks, who wants to learn data manipulations in R

创建者 Channaveer P

Jul 24, 2017

Good one.... teaches you good skills to handle data and stress :)

创建者 Shuo C

Feb 21, 2018

This whole specialization is very informative! Highly recommend!

创建者 María A D S C

Apr 09, 2019

Muy interesante, bastante información y todo muy bien explicado

创建者 Gaalle A A P M P

Jan 23, 2018

Thank you very much for letting me do this course. Learned alot

创建者 duoruishi

Oct 29, 2017

It's a useful course but the final assignment is real hard hah.

创建者 Noah B

Apr 27, 2016

Solid fundamentals gained from this course on data manipulation

创建者 Denise O

Mar 16, 2016

Great use of R. It really helped solidify what I learned there.

创建者 Ellen B

Jul 02, 2018

Very nice course, and clear how to do it. I like it very much!

创建者 Sanjay L

May 16, 2018

Good Course. It gives an idea on how to prepare tidy data set.

创建者 Shashank S N K

Jan 31, 2018

It is great to know how the cleaning process is performed in R

创建者 Michele F F

Jun 27, 2019

The best course I have already done about data preprocessing!

创建者 Vinicio D S

Nov 20, 2017

Great course for getting to know different places to get data

创建者 Shri P S

Aug 03, 2017

Very nice and highly recommended training or data scientists.

创建者 Giridhar C

May 15, 2017

most important course for simple cleaning pls dont omit swirl

创建者 Sam Z

Dec 12, 2016

This is a great course! I like it. It really helped me a lot.

创建者 Rafael H G

Mar 21, 2016

Good course to learn how to use R to getting and clening data

创建者 Juan A J R

May 20, 2017

great starting in the pain of getting data ready to analysis

创建者 David S

Feb 05, 2019

Better than R Programming. Still very hard, but worthwhile.

创建者 Rishabh J

Aug 22, 2017

The course project was a good exposure to untidy data sets.

创建者 Apurv S

Mar 13, 2017

great course... feel more confident with data analysis....