I had a little time (something I am not blessed with lately) and found http://iwl.me. Not anything that is scientifically sound; mind you, but interesting none the less. Supposedly, if you cut and paste a writing sample to the site, it will analyze it and tell you who you most write like. If you click on the results, it will send you to a page that will give you more information about the author, as well as the opportunity to buy his/her books at discounted prices. Mine was Charles Dickens and Stephen King. Anyhow, try it out and post your results, maybe we can figure out if the site is truly analyzing your writing or if it is just trying to sell books.