Last month, on Sept 10th, I finally finished the Capstone project for the tenth course of the Coursera Data Science Specialization. I had been staying up for more than four nights in a row, the latest to the second day … Continue reading
Like all tier-1 research universities, our institution has over 60 K students, 20k employees including teaching and research faculty, staff, part-time and temp. Over the years, multiple platforms have been adopted by various campus units to keep track on different … Continue reading
When it comes to text analysis, a lot of articles would recommend clean the texts before moving forward, such as removing punctuation, lower letters, removing stop words, white space, removing numbers, etc. In the tm() package, all these can be … Continue reading
Last journal talked about how to get general txt files features such as size, line, word and char counts. This journal will record my learning journey of ploting the features. See below: > textStats Type File.Size Lines Total.Words Total.Chars 1 … Continue reading
Reading the large .txt files from the course project has been a long learning journey for me. Method 1: R base function: readLines() I first started using the R base function readLines(). This would return a character vector, which the … Continue reading
I am finally at the last course of the Coursera Data Science Specialization. I already know that I need to learn Python in order to be a real expert of data analysis in my field to get start of. But … Continue reading
Finally, I am at the capstone project — after three years of on and off working on this coursera specialization, I am finally here. The project is to give you a set of text documents, asking you to mine the … Continue reading
Finishing up reviewing Coursera Course Developing Data Products week 2 peer assignment, I saw this peer’s work and was impressed. Compared to this work, mine was minimum, even I got full score. In the future when there is chance, I will try … Continue reading
First: what is the best structure for a data? CSV or Json, or depends? I read an article claiming that json is much better than csv – will try to find the link later, but right now, the client I … Continue reading
Alright, it has been 12 days since last time I updated here about my data driven chart creation journey. During the past 12 days, except for the three days of trip to Blueridge mountains with my wonderful husband and two … Continue reading