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>> > demonstrates this funny non-linear relationship between Rcryst and map >> > quality. It was only after I made this movie that I realized maps calculated with an Rcryst of 30% look pretty much exactly like maps calculated with Rcryst of 10%. The movie was made with all calculated >> > data (perfect phases to 1.5A) and I just randomly corrupted the Fs and >> > re-scaleit-ed them back to the original, calculated set. > > But did you change the phases? Actually, it's James Holton's movie, and as I understood it he didn't change the phases. > If you are not familiar with Kevin Cowtan's marvelous demonstration of using ducks and kittens to randomize phases or F's, > head right away to Very interesting page...but I can't start a derivation with ducks and kittens. Well, actually, I just feel more comfortable if I have some equations I can look at. Pete Pete Meyer Fu Lab BMCB grad student Cornell University
