Though you probably don’t understand cluster analysis, a method of mathematical statistics, its basic tenant (believe it or not) figures in Katharine Whitehorn’s remark about film Westerns:
I wouldn’t say when you’ve seen one Western you’ve seen the lot; but when you’ve seen the lot you get the feeling you’ve seen one.
(Quoted from page 90 of The Essential “Journal of Popular Film & Television” Collection, edited by Gary R. Edgerton and Michael T. Marsdon. Routledge, 2012.)
For a brief biography of Katharine Whitehorn, click here. For images of or relating to Katharine Whitehorn, click here.