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學生對 约翰霍普金斯大学 提供的 探索性数据分析 的評價和反饋

4.7
5,976 個評分
874 條評論

課程概述

This course covers the essential exploratory techniques for summarizing data. These techniques are typically applied before formal modeling commences and can help inform the development of more complex statistical models. Exploratory techniques are also important for eliminating or sharpening potential hypotheses about the world that can be addressed by the data. We will cover in detail the plotting systems in R as well as some of the basic principles of constructing data graphics. We will also cover some of the common multivariate statistical techniques used to visualize high-dimensional data....

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CC

2016年7月28日

This is the second course I have taken from Roger Peng and both were outstanding. I have a strong math background, but not much of a background in stats, but this course was very approachable for me.

Y

2017年9月23日

Very good course! It provide me the foundation in learning how to plot and interpret data. This will definitely strengthen my "R programming" to generate publication type figure for my genomics data!

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826 - 探索性数据分析 的 843 個評論(共 843 個)

創建者 Jesus A P G

2020年7月20日

More than Exploratory data analysis, the course is only focused on how to make graphs in R. That is actually fine, but the name of the course is not suited to the content. In addition, the lectures were too boring. The lack of pedagogy is stunning. The most useful part of the course was the swirl exercises that were the same examples shown in the lectures. That is why it seems that watching video lectures is an incredible waste of time.

創建者 Jamie R

2019年6月6日

Just an extended course on using R. There was little strategies for Exploratory Data Analysis, infact the example jumped from a high level view of the data to then start looking at individual counties. There are multiple tools in the market that will deliver in a better and faster way for exploratory data analysis. This course should be more targeted at developing a skill set that is tool agnostic.

創建者 Joseph M K

2017年1月31日

Clustering topic is covered superficially, too much time spend on employing ggplot graphs, not very useful since making graphs is straightforward on other software, like excel, once you aggregate datasets correctly. I had not found it very enriching as a course. I would merge this class within R-Programming section and call it Part 2 rather than categorizing into "Exploratory Data Analysis".

創建者 Bartlomiej W

2016年2月6日

Some parts of material is good quality, but some is bad - also some show bad practices in R. Extensively use swirl as assignments over self work. It is better to go through good tutorial over R base plotting system and ggplot2.

創建者 David I

2016年3月26日

The final project did not require use of the material in the course beyond the first week and a half. I did not take any quizzes or otherwise have my knowledge tested on the material in the second half of the course.

創建者 Rohith J

2016年12月13日

Course content and assignments were difficult to follow. Loads of statistical content along with high-level R content means it was probably the toughest of the 4 I have taken so far in the Coursetrack.

創建者 Dmitry R

2016年2月6日

some swirl tests (4,5) don't work because of parameter method in qplot function. This parameter is not realy existed in this function now

創建者 Rahul R

2021年6月16日

S​VD should be better explained. I found diffucilut to understand. Some backgroeund matrices and it's operations should be explained.

創建者 Freddie K

2017年4月5日

Quite repetitious in covering basic graphing, and very shallow in regards of clustering, SVD and PCA.

創建者 Tamaz L

2016年4月5日

Very unprofessional, compared to other courses. It wasn't well organized.

創建者 Desmond W

2016年10月19日

About plotting in R. Not about generating real insights from EDA.

創建者 Esther L

2019年8月22日

Too weak regarding the clustering methods, very disappointed.

創建者 ewa b

2017年5月31日

didnt get much useful-- a whole "course" on plotting? meh.

創建者 Vineet P

2020年6月2日

Not upto expectations

創建者 Michal K

2016年5月10日

too superficial

創建者 Piyush V

2016年6月21日

Veyr boring

創建者 Nicholas

2016年9月30日

NEEEEEED TO EDIT MY PEER REVIEW FROM OTHERS

創建者 Carsten J

2016年3月1日

Material is to basic for an entire course.