Talk:Normalize ccp4 maps

Discussions about isolevel discrepancy between PyMOL and Coot

• https://www.jiscmail.ac.uk/cgi-bin/webadmin?A1=ind1506&L=COOT&D=0#3
• https://www.jiscmail.ac.uk/cgi-bin/webadmin?A1=ind1506&L=ccp4bb&D=0#16

PyMOL normalizes across the data grid in the ccp4 file, not across the unit cell. Better options might be:

• normalize across the unit cell
• not to normalize at all (change the default of normalize_ccp4_maps to off)
• normalize based on AMEAN and ARMS reported in the ccp4 map header