April 2018
Intermediate to advanced
408 pages
10h 42m
English
The Spearman rank-order correlation is a comparison between the rankings of two variables. It neatly bypasses the magnitude of the values, and it can often find a correlation even when the relationship is not linear. The formula is as follows:

This formula shows us that we'll be summing the differences in rank
, and
, for all of the pairs of observed values. The Python version of this depends on the