Currency traders pay a lot of attention to seasonality. “NZDUSD tends to sell-off in August” is often cited as an argument (combined with other considerations, of course) to either short the ...
https://coolstatsblog.com/2020/08/20/seasonality-does-it-work/
This is a practical tutorial on performing PCA on R. If you would like to understand how PCA works, please see my plain English explainer here. Reminder: Principal Component Analysis (PCA) is a m...
A common-sense explanation of PCA, and how to do it yourself in six steps.
https://coolstatsblog.com/2015/03/21/principal-component-analysis-explained/
What is a chi-square test: A chi square tests the relationship between two attributes. Suppose we suspect that rural Americans tended to vote Romney, and urban Americans tended to vote Obama. In ...
https://coolstatsblog.com/2014/05/03/how-to-do-a-chi-square-test/
Recently, Greg Laughlin, the founder of a new statistical software called Statwing, let me try his product for free. I happen to like free things very much (the college student is strong within m...