Hi Tim,
I was discussing that with a student today, because we observe the same thing when we make test sets for k-fold cross validation. It is an implementation choice. You can random sort and then bin, or you can assign a random number to each reflection and translate that to a bin. The latter is fine for large bins, but not for small ones like the ones you are making. Cheers, Robbie Sent from my Windows 10 phone Van: Tim Gruene<mailto:[email protected]> Verzonden: maandag 30 januari 2017 21:03 Aan: [email protected]<mailto:[email protected]> Onderwerp: [ccp4bb] variation in freerflag Dear all, when I ran freerflag with the keyword FREERFRAC 0.002, the number of reflection per flag (between 0 and 500) is very high, it varies between 17 and 1. Why is there such a high variation, instead of flagging always the same number of reflections per flag (6-7 in my case)? Can the distribution be made evenly? Best regards, Tim -- -- Paul Scherrer Institut Tim Gruene - persoenlich - OFLC/102 CH-5232 Villigen PSI phone: +41 (0)56 310 5297 GPG Key ID = A46BEE1A
