Category Archives: Poland

Pearson’s r: Not a good measure of electoral persistence

Pearson’s product-moment correlation, $$r$$, is an incredibly useful tool for getting some idea about how two variables are (linearly) related. But there are times when using Pearson’s $$r$$ is not appropriate and, even if linearity and all other assumptions hold, … Continue reading

Posted in Data analysis, Graphics, Poland, Political parties, R | 3 Comments