Dear Ricardo Under certain circumstances, such as ice rings in the data, older versions of ctruncate can fail to output structure factors. The solution is to use a later version (1.0.02) of ctruncate, as distributed with CCP4-6.1.2.
Norman -----Original Message----- From: CCP4 bulletin board [mailto:ccp...@jiscmail.ac.uk] On Behalf Of Ricardo Aparicio Sent: 09 September 2009 22:12 To: CCP4BB@JISCMAIL.AC.UK Subject: [ccp4bb] ctruncate Dear all, For the same input in a ccp4i (v .2.0.4) Scala (v. 3.3.9) job I have obtained the following: with CTRUNCATE (v. 1.0.01) ================== Col Sort Min Max Num % Mean Mean Resolution Type Column num order Missing complete abs. Low High label 5 BOTH ? ? 12586 0.00 ? ? -999.00 0.00 F F_BA2 with TRUNCATE (v. 6.1) ================== 5 NONE 1.8 152.8 766 93.91 20.26 20.26 24.93 2.80 F F_BA2 The final file after Ctruncate cannot be read in by some programs although mtzdump can dump it. Thanks for any comments on possible reasons for this problem. Ricardo -- Scanned by iCritical.