[ccp4bb] Extraction of test set from CNS reflection file

2007-03-01 Thread Florian Brückner
Dear colleagues, I have a dataset form a protein-ligand complex. I want to use the same Rfree test set for refinement as used for the protein alone. How can I extract the test set from the CNS reflection file of the protein-alone dataset (created with make_cv) to use it with the

Re: [ccp4bb] Extraction of test set from CNS reflection file

2007-03-01 Thread Axel Brunger
Actually, the merge script will create the superset of both reflection data sets, so it won't delete reflections from one data set that are not present in the other data set. Once you have done the merge.inp script, you can use the make_cv script to extend your test set while keeping your

Re: [ccp4bb] Extraction of test set from CNS reflection file

2007-03-01 Thread Olve Peersen
A few years ago I did this by first using the solved structure to generate a hypothetical (FCALC) data set to some rather optimistic resolution limit (2A when I was stuck at 2.7), carrying out a random Rfree selection on this FCALC set, and then dumping the FCALCs while retaining the Rfree