Data viz

Workout analyzer

Mutational signature app

An interactive treemap of media franchise revenue by category

an interactive treemap using treemap and d3treeR

How difficult it is to get into the top universities in China

data visualization of the college entrace exam data in 2017

Data visualization

This project contains a list of data visualization generated using R. GitHub tidytuesday repo Click here Tweets It is a little bit tricky to do it. I have to make a duplicated row for the midnight hour (hr = 0) and name it as "hr = 24" so the time (0 6 12 18) will be aligned perfectly. — Zhi Yang, PhD (@zhiiiyang) December 24, 2019 As promised, here are a Sankey diagram and a Twitter-logo-shaped word cloud of the most used hashtags among tweets posted and liked by me in 2019.

E-cig use among youth

This project is focused on studying e-cigarette Product Characteristics and Frequency of Smoking Among Young Adults. Previous research suggests that e-cigarette use is associated with cigarette initiation, including the frequency and heaviness of cigarette smoking. The goal of this research is to examine the impact of specific e-cigarette characteristics on cigarette smoking frequency. What we did is to use advanced counts model to model the association between the e-cigarette exposures and the outcome, the number of cigarette use in the past 30 days.