It's a Wiki so anyone can edit it. I think you just have to create an account here:
https://dictionary.iucr.org/index.php?title=Special:CreateAccount&returnto=Real-space+correlation+coefficient Note that you must have an entry in the World Directory of Crystallographers, otherwise your Username will be deleted from the list of contributors by the webmaster. Cheers -- Ian On Tue, 10 Mar 2020 at 14:56, Schreuder, Herman /DE < herman.schreu...@sanofi.com> wrote: > Dear Gerhard, > By clicking on the "Actions" button, I discovered that the contribution > comes from Brian McMahon. Maybe you could contact him about this? > Best regards, > Herman > > > -----Ursprüngliche Nachricht----- > Von: CCP4 bulletin board <CCP4BB@JISCMAIL.AC.UK> Im Auftrag von Gerard > Bricogne > Gesendet: Dienstag, 10. März 2020 15:16 > An: CCP4BB@JISCMAIL.AC.UK > Betreff: [EXTERNAL] [ccp4bb] An error in the IUCr Online Dictionary of > Crystallography > > EXTERNAL : Real sender is owner-ccp...@jiscmail.ac.uk > > > > Dear all, > > While we are all discussing how to "push the frontiers" of our field, > there seem to be some dark and dusty corners in the documentation of some > basic notions. For instance the formula for the real-space correlation > coefficient given at > > > https://urldefense.proofpoint.com/v2/url?u=https-3A__dictionary.iucr.org_Real-2Dspace-5Fcorrelation-5Fcoefficient&d=DwIBAg&c=Dbf9zoswcQ-CRvvI7VX5j3HvibIuT3ZiarcKl5qtMPo&r=HK-CY_tL8CLLA93vdywyu3qI70R4H8oHzZyRHMQu1AQ&m=1AJ1T0r6mgUdK4idVKIjexWpgp_ApLYGh_-nN1mePPo&s=MizVfSbJiL7RRu5wYQy9khDyX9qrR2dEs_vzAIdQiHk&e= > > is completely garbled. The absolute value signs in the denominator are > superfluous, although harmless since we are dealing with real numbers, but > the numerator is wrong in two respects: > > 1. there should not be absolute values around the deviations from the > mean of the two types of densities; > > 2. the expression should be a single summation of products of those > two > types of deviation, not a product of single sums! > > Does anyone know how to get this corrected? > > > With best wishes, > > Gerard. > > ######################################################################## > > To unsubscribe from the CCP4BB list, click the following link: > > https://urldefense.proofpoint.com/v2/url?u=https-3A__www.jiscmail.ac.uk_cgi-2Dbin_webadmin-3FSUBED1-3DCCP4BB-26A-3D1&d=DwIBAg&c=Dbf9zoswcQ-CRvvI7VX5j3HvibIuT3ZiarcKl5qtMPo&r=HK-CY_tL8CLLA93vdywyu3qI70R4H8oHzZyRHMQu1AQ&m=1AJ1T0r6mgUdK4idVKIjexWpgp_ApLYGh_-nN1mePPo&s=f__j9qvpduOnjZB_eN7PR8aDuZisD5CYx78oJ2IzXp8&e= > > ######################################################################## > > To unsubscribe from the CCP4BB list, click the following link: > https://www.jiscmail.ac.uk/cgi-bin/webadmin?SUBED1=CCP4BB&A=1 > ######################################################################## To unsubscribe from the CCP4BB list, click the following link: https://www.jiscmail.ac.uk/cgi-bin/webadmin?SUBED1=CCP4BB&A=1
