If you go to this site, http://iwl.me/
you paste some of your writing and it tells you what famous author you write most like. I think it's mostly based on word use.
I tried all sorts of my work, and got some reasonable answers (Raymond Chandler, Stephen King, William Gibson), but got Jane Austen for about half of the chapters of a completed novel I wrote.
I don't know what it tells you, but it's fun!
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