May 03, 2020
This course provides an introduction of some important concepts and tools on a very important aspect of data science: cleaning and organizing data before any analysis. A must for any data scientist.
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.
교육 기관: Diego T B•
Nov 07, 2017
Very interesting. Global view to process Data and try to explain with very useful techniques the processing or cleaning data with regular expressions. I enjoyed it!
교육 기관: Johann R•
May 28, 2017
A great course in which many important concepts and techniques are covered. It also covers many handy tools/libraries that one can use to clean and manipulate data.
교육 기관: Mauro S d S•
Mar 05, 2017
Very intense and covering a lot of material - After about an year from having the course and with a different understanding, this is probably the course to revisit.
교육 기관: John J O G•
Jan 25, 2017
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
교육 기관: Dany M•
Oct 24, 2017
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.
교육 기관: Nimalka W•
Feb 13, 2019
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
교육 기관: Ayas S•
Nov 08, 2018
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.
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: Kwun H N•
Dec 25, 2017
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.
교육 기관: Y S K•
Apr 23, 2017
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.
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: Stefan L•
Mar 14, 2016
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!
교육 기관: Yash G•
Aug 07, 2018
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
교육 기관: guilherme•
Apr 04, 2016
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.
교육 기관: Marely T R A•
Apr 22, 2020
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.
교육 기관: Bhargava B•
Mar 29, 2018
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.
교육 기관: Savitri•
Aug 26, 2018
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.
교육 기관: Rizwan M•
Jul 06, 2018
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.
교육 기관: Michael M•
Aug 28, 2017
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.
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.
교육 기관: Saeed A Q•
May 31, 2020
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.
교육 기관: Araks S•
Jun 20, 2017
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.
교육 기관: Hernan D S P•
Mar 06, 2018
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!
교육 기관: Guillaume S•
Mar 24, 2018
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!
교육 기관: Han C•
Mar 27, 2017
Assignment difficulty is good and practical, however, I took quite a while to understand the raw data structure and the purpose of the assignment.