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.
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.
por Jonathan D B•
really thorough class... come prepared to learn and be patient as your going to get your hands pretty dirty reading data, cleaning it and manipulating the result sets with R
por Luis E B P•
I think this course is really good, the instructors give you a lot of tools to handle data bases! I would recomend this course to any person that wants to learn about this.
Super useful, there are so many raw data in the practical world, which are needed to be cleaned, so that the analysts and other people can easily get information from data.
por Christopher R•
I use so much of what I've learned here on a day to day basis! Using the suite of functions from ggplot, dplyr, plyr and others has greatly reduced my data management time.
por Satish V•
This course was very useful, informative and interesting. However, I did feel that the course assignment seems to be, perhaps purposefully, but a bit unnecessarily vague.
por Anand R•
Course was very useful and learnt about how to handle the data especially raw data and also fetching them with various aspects. Thanks Jeff and team and also coursera
por Sreemoyee M•
The challenging quizzes and assignments are a main reason why this course is so great! This course truly ensures that you truly understand and implement the videos.
por Jorge B S•
I have found this course very useful to gain a nice overview of the main tools to obtain and clean data. Moreover, for me it was challenging, which is always a plus.
por Diego T B•
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!
por Johann R•
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.
por Mauro S d S•
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.
por JOHN J O G•
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
por Dany M•
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.
por Nimalka W•
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
por Ayas S•
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.
por Hatem K•
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.
por Kwun H N•
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.
por Y S K•
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.
por Jihad R•
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.
por Stefan L•
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!
por Yash G•
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.
por Marely T R•
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.
por Bhargava B•
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.