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Getting and Cleaning Data(으)로 돌아가기

존스홉킨스대학교의 Getting and Cleaning Data 학습자 리뷰 및 피드백

6,560개의 평가
1,012개의 리뷰

강좌 소개

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....

최상위 리뷰


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.

필터링 기준:

Getting and Cleaning Data의 972개 리뷰 중 126~150

교육 기관: Tiago P F

Jan 03, 2018

Excellent course, with a very important focus on documentation and code versioning.

교육 기관: Jihad R

Nov 04, 2016

Great course! Very well structured and complete in the knowledge it brings both on the R language itself and in the concept of data clean up and transformation.

교육 기관: Yuyang L

Sep 12, 2016

Thanks! I learnt a lot of practical skills/

교육 기관: Yergali B

Mar 16, 2016

very useful course for making data

교육 기관: Zhao M

Nov 01, 2016


교육 기관: Mohammed A O

Jan 30, 2017

This is a challenging but very intersting course, I had to learn lot from the course and from the colleagues through the pairs work examination.

Thank you!

교육 기관: Shaikh M I

Nov 22, 2016

This course is really helpful and very practical. Provides industry standard information and adheres to the scientific principles.

교육 기관: Jiawen C

May 04, 2016

Great course!

교육 기관: Sabyasachi M

Jan 31, 2017

Great teaching method :)

교육 기관: Hatem K

Dec 05, 2016

Excellent course. You will learn about concepts of 'clean' or tidy data and apply it in R. One of the most important, yet often ignored, aspects of data science.

교육 기관: 朱荣荣

Mar 09, 2016


교육 기관: Abhimanyu B

Jan 03, 2017

Teaches a crucial and often overlooking step in the data analysis workflow. Brilliant tips and insights!

교육 기관: Stepas L

Dec 19, 2016

Loved this course,best so far from all data science .

교육 기관: Ricardo M S

Jul 03, 2016

Awesome material and lots to learn

교육 기관: Peter

Mar 23, 2016

Very good class for a beginner. Helps become more comfortable with R programming and aspects of getting data into R

교육 기관: Randal N

Jan 23, 2018

Very enlightening course. It is the first course where I felt like I was actually doing something data sciency. Would recommend even as a stand alone course because I have now come to appreciate the importance of tidy data in performing successful analyses.

교육 기관: Rodney A J

Jun 06, 2017

This is a terrific course on obtaining data from various sources and then cleaning the raw data obtained to form useful tidy data sets. The course material learned is reinforced using a very interesting peer-reviewed project based on accelerometer and gyroscopic data from collected from typical human activity.

교육 기관: Shuo C

Feb 21, 2018

This whole specialization is very informative! Highly recommend!

교육 기관: Joaquim M J

Jun 17, 2017


교육 기관: Carlos R

Jul 22, 2017

Good hand on course to learn manipulating data. Thanks!

교육 기관: Marina Z

Jul 26, 2017

just a great course

교육 기관: Huang J

Sep 19, 2016

Useful to get the basics right

교육 기관: Prohnițchi V

Oct 02, 2017

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

교육 기관: Carlos A M S

Oct 19, 2017

This course is fantastic! Through it was possible concretely to apply the concepts of BigData through the tool proposed for the course. Due to various difficulties I had to leave. But I'm coming back with all my might. Congratulations to all teachers who make no effort to pass on knowledge in a substantial and substantial way.

교육 기관: Haoxiang Z

Nov 04, 2017

Learned a lot