Kevin
Does this give the correlation between two (weighted) complex Fs,
which is arguably (ref Bricogne) the best measure, as it corresponds
to the map correlation but as a function of resolution?
Phil
On 28 Aug 2007, at 17:22, Kevin Cowtan wrote:
Yup. cphasematch
It gives unweighted and weighted mean phase errors and F and E
correlations. It'll also try the opposite hand if appropriate.
It's in the GUI under Clipper utilities.
For an example script, run it in the GUI and then view the command
file.
Kevin
Winter, G (Graeme) wrote:
Hi CCP4BB,
Is there a straightforward way to compute the mean phase
difference between two phase columns in an MTZ file, allowing for
the difference in the origin? I am thinking something like:
Cad together two reflection files - renaming the PHIB column, most
likely
Compute phi offset - apply to get the origins the same
Compute the r.m.s. phase difference in degrees etc.
Also - is there a general feeling as to how useful this is for
comparing the results of phasing between different packages? I was
thinking that PHI_ref could be computed fom the final refined
structure, if this is available, as a benchmark. Alternatively is
there a "correct" way to be doing things like this?
An example script would be really great…
Thanks,
Graeme
