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

Muy buen curso y con buena evaluación de los temas mediante asignaciones varias con estudios en el mundo real que lo preparan para estar analizando trabajos reales

Great course! I loved it. It's just informal enough and rigorous enough. The pace is enjoyable and the experience of the instructor carries well.

Highly recommend.

Useful general course on tidying data and learning to import into R from various sources. Doesn't get into sequencing data import, but looks at other common ones

This course was very intense and not easy but over all, after doing all the work! Oh man I feel I have way more confidence in my R skills and Data understanding.

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.

It is an excellent exercise to work on data cleaning and pre-processing. Also give me the great chance to read through the paper by Hadley Wickham on Tidy Data.

This course gives an excellent introduction to the various data collection and tidying processes using R. This course is a must for any aspiring data scientist.

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.

Interesting course with a lot of time intensive quizes. It, however, opened my eyes on how to effectively work towards clean data.

Thanks for the great courses!

It was really an enriching course. I learnt a lot about the raw data formats and tools and techniques to get the best out of that raw data. Highly recommended

Very good course. By taking it you have the opportunity to build experience with R and get used with the main codes needed to perform a data cleaning process.

Excellent course. A little bit difficult if your not used to handle matrices and vectors. Perhaps a review of the concept would be good to help new learners.

This is a major basic skill to be acquired. The course does great job at introducing various methods and makes us practice with the quizzes and assignments.

its the best course for the data science students and it will help all the student who are going to join or who want to start their career in data science.

good. however, volume of the video is very low, not audible without external speakers on some PCs. request to improvise. spoken language is also very fast.

Another great course! I'm really glad there was so much support to help me get started on the class posts. PS, I think I'm in love with the ddply function.

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!

One of the best courses to learn R language. You will love and appreciate R and its approach to Data. Very concisely taught with passion and knowledge.

I definitely loved this course.

My advice to anyone taking this course is to spend fare amount of time on assignments as it is the part when you learn.

Such a practical course, I was able to learn about how to obtain data in a easy and useful way also using more commands to extract info from internet.

This is a very useful course on How to use R to prepare the data you need to analyze! highly recommended for both beginner and advanced data analysts!

Very interesting but a bit tough and time consuming with a lot of work on your own... but that's probably how you develop real life hacking behavior!

Assignment difficulty is good and practical, however, I took quite a while to understand the raw data structure and the purpose of the assignment.

Great introduction to scraping information from internet sources and turning complicated data into something that can be visualized and processed.

Thanks for this course, it's thoughtfully planned and beginners like me were able to produce results according to the topics that challenged us.