I have the following dataframe:
Year 2000 2010 2011 2012
Feature1 13 45 55 43
Feature2 44 35 80 79
Feature3 40 43 34 30
I want to see which one of these features has the largest change (I don't want to ignore the inner values (2010 and 2011 here)).
Is there any metric or formula for measuring the general slope of each features' change over years or something like that?