This is pretty cool.
When people say to have a github repository, I often worry that people think they have to have some huge project. Like a fork of Node or something.
This analysis would be more than enough for me to give someone an interview.
The math isn't complex, the analysis is pretty shallow but it shows that the author knows their way around the basics of:
- finding data, this is often the hardest part of data analysis
- working with data, unpacking, storing, retrieving, etc
- basic analysis with R or python
As a first introduction to a potential employee, this is more valuable than having a good resume and its well within reach of most people, regardless of how busy you are!
TL/DR, don't overthink having a public github account. Basic analysis like this will put you above most other candidates, oh and good job to the author!