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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
5,981 個評分

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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801 - 探索性数据分析 的 825 個評論(共 844 個)

創建者 Fabiana G

2016年6月23日

Course feels somewhat abandoned by instructors. Content is okay, but can't help the feeling that it's basically a cash cow - students would benefit a lot if instructors were move involved.

創建者 Ashish T

2018年5月5日

Great introduction to the plotting libraries in R and visualization of data.

However the introduction to hierarchical clustering, and Principle component analysis was extremely vague.

創建者 Asier

2016年3月10日

The course content applies to R. The teachers focused on the programming language rather than the application of the existing graphs to explore data.

創建者 Gianluca M

2016年10月13日

A nice introduction to the three plotting systems in R. The second part is devoted to clustering, but it is not detailed enough to be really useful.

創建者 Andreas S J

2017年10月4日

Important and interesting stuff - but lots of it is repeated too much, which make it seem like 4 weeks is too much for the material.

創建者 Dylan P

2018年5月13日

I would have liked an assignment to focus on the clustering methods and I think dimension reduction was reviewed way too quick.

創建者 ozan b

2017年2月5日

Course is good in general but "HIERACHICAL CLUSTERING" part is hard to understand and is not clear, should be explained more.

創建者 Casey B

2016年5月12日

Good class - links and slides have not been updated recently. Frustrating to finish without the exact linkts to the data.

創建者 Katharine R

2016年5月3日

Good course, but the SWIRL exercises (and a few quiz questions) needed to be updated for the latest version of ggplot2.

創建者 Johnny C

2018年3月6日

In general was good, but there were some lectures and exercises which were disorganized ("plots with colors")

創建者 Erkan E

2016年6月24日

I wish there several comprehensive examples of exploring some real data as guided by the course instructors.

創建者 Mehrdad P

2019年8月25日

The course was overall ok, but I wish discussions about k-means, PCA and SVD were divided into two courses.

創建者 Daniel P

2019年12月8日

I've learned plotting in R. I expect to learn more in four weeks of "Data Science" specialization.

創建者 Stuart A

2020年7月18日

Course hasn't been updated in a long time, some of the data needed for the projects has migrated.

創建者 Francisco M R O

2019年1月8日

The third and fourth week were a big leap in knowledge and not really well explained, for me.

創建者 sandeep d

2018年3月10日

Excercises are very good. But I believe lecture could be more interesting and easily taught.

創建者 Guy P

2016年3月26日

It misses an assignment which will allow to practice the clustering skills.

創建者 Alex s

2018年1月17日

It focus too much on the tools and a little bit on the analysis

創建者 Amit O

2017年9月30日

faced many technical difficluties in pratcice exerices in swirl

創建者 Victor M C T

2022年1月4日

The swirl labs failed, I never could load the "field" module.

創建者 Eduardo V K

2020年6月28日

There seems to be some outdated info in several tests.

創建者 Rafael A

2017年3月23日

First two weeks are too repetitive with other courses

創建者 Kevin F

2020年7月15日

pretty brief and basic. no assessment on clustering.

創建者 Erwin V

2016年3月12日

Interesting stuff, but not a lot of detail

創建者 Oscar P G P

2020年9月17日

It's necessary for more examples!!!!