2020년 5월 2일
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.
2016년 10월 25일
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: Arnav D•
2017년 1월 2일
Could be more hands on! for example interactive tutorial where the instructor actually using the functions to demonstrate how things work.
교육 기관: Jennifer L F W•
2021년 1월 2일
Quite good for me who has just enter this field. Easy understanding lecture videos but the course project is hard for me as a beginner.
교육 기관: Johnnery A•
2019년 9월 22일
Los profesores debe explicar con mas detalle los temas. Pienso que hay una brecha importante entre los temas del curso y los proyectos
교육 기관: Jose L S V•
2021년 3월 1일
Muy buen curso, pero a veces batallas con las tareas. Toma más tiempo del que se supone debería. Aún así, lo recomiendo ampliamente.
교육 기관: harish s•
2020년 12월 26일
good course. swirl rules!. I think the unique part of this course is the assignments and course project, they are quite challenging.
교육 기관: kipchumba B•
2021년 2월 28일
It's a nice course. Prior to starting this course, I knew nothing about getting let alone cleaning data. thanks to JHU and coursera
교육 기관: Ricardo M•
2017년 11월 8일
Assigments description should have a clearer description. In some cases it's not absolutely clear what is intended to be delivered
교육 기관: Karolina W•
2016년 6월 12일
Good course, learned a lot especially through the quizzes and the course project, but slides/presentations could be more engaging.
교육 기관: Hernan S•
2016년 4월 15일
Fun and interesting. Won't remember all the ways to get and clean data, but it's good to review them so I know what's possible.
교육 기관: C. T M•
2016년 1월 27일
it's a little rapid fire, but the exercises are excellent for applying the firehose of functions and concepts from the lecture
교육 기관: Irmgard T•
2017년 6월 20일
Good course, though I found that the lecture content could have matched the knowledge required for the tasks/projects better.
교육 기관: Md F A•
2016년 5월 23일
The demanding complexity for 'programming-project( final )' should offer little more instructional support on lecture slides.
교육 기관: Alfredo A•
2017년 6월 12일
Great introductory course in how to use R to get data from different sources and leave record of this step of data analysis.
교육 기관: José I F J•
2016년 11월 17일
It is a very good course, but it does not follow the same level of proposed work as in the previous course (R Programming).
교육 기관: Francisco J D d S F G•
2016년 11월 3일
A thorough course on how to structure and clean dirty data before making analyses on the data - very practical course in R.
교육 기관: Rejane R d C P•
2020년 11월 2일
I think some assignments may be more clear such as the final project. They give way to several different interpretations.
교육 기관: Greg R•
2016년 4월 14일
Some parts of the course felt like... here are some cool things you might want to do... Google them. Otherwise valuable.
교육 기관: Lei S•
2017년 12월 24일
A little bit hard to follow, because there were so many things didn't work for me. I had to figure things out by myself.
교육 기관: Madhav S K U•
2017년 5월 29일
i found this useful and gained knowledge on important pacakages,if you are a beginer in R do not skip "swirl " practice.
교육 기관: Jeroen v B•
2018년 9월 16일
The course is ok, but a little bit too general. It should require more actual coding, maybe worksheets might be useful.
교육 기관: Giovanna A G•
2016년 9월 25일
It is amazing to learn how many different kinds of data exists and how to work with them using R. Wonderful course!
교육 기관: Tran H H T•
2016년 2월 21일
Slides and videos are a bit insufficient in order to finish course projects.
Apart from that, this course is awesome!
교육 기관: ESTEBAN C P•
2021년 8월 23일
Definetly it´s a better than the 2nd one (R Programming). Hopefully the next one keeps with this didactical level.
교육 기관: Dylan P•
2018년 4월 21일
I think there should be more graded assignments. The quizzes help but doing more projects would be really helpful.
교육 기관: jishuenkam•
2016년 8월 14일
I think it is a decent introduction to data cleaning. Could be more detailed in terms of the content delivered.