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Hi Francis,<br>
<br>
by default both F+ and F- are used in phenix.refine. However, you can
request that the average values, Fobs_ave = (F+ + F-)/2 are used
instead ("xray_data.force_anomalous_flag_to_be_equal_to=False" keyword).<br>
<br>
Peter may have more details on how this is handled in twin-refinement.<br>
<br>
Pavel.<br>
<br>
<br>
On 10/20/2008 7:45 AM, Francis E Reyes wrote:
<blockquote cite="mid:3B36B436-DCDA-43FA-9E8B-1987E4C91DF5@colorado.edu"
type="cite">All
<div><br>
</div>
<div>How does phenix.refine handle the twin refinement target when
refining against F+/F-? I'm specifically asking for the proper
assignment of F+/F- for twin related reflections (<font
class="Apple-style-span" color="#333333" face="arial">e.g. </font><span
class="Apple-style-span"
style="color: rgb(51, 51, 51); font-family: arial;">10.1107/S0907444902021704).
My data is currently in P41 with friedel pairs as output by scala. </span></div>
<div><font class="Apple-style-span" color="#333333" face="arial"><br>
</font></div>
<div><font class="Apple-style-span" color="#333333" face="arial"><br>
</font></div>
<div><font class="Apple-style-span" color="#333333" face="arial">Thanks</font></div>
<div><font class="Apple-style-span" color="#333333" face="arial"><br>
</font></div>
<div><font class="Apple-style-span" color="#333333" face="arial">FR</font></div>
<div><font class="Apple-style-span" color="#333333" face="arial"><br>
</font></div>
<div>
<div> <span class="Apple-style-span"
style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px;">
<div style="">
<div>---------------------------------------------<br>
Francis Reyes M.Sc.<br>
215 UCB<br>
University of Colorado at Boulder<br>
<br>
gpg --keyserver pgp.mit.edu --recv-keys 67BA8D5D<br>
<br>
8AE2 F2F4 90F7 9640 28BC 686F 78FD 6669 67BA 8D5D</div>
</div>
</span> </div>
<br>
</div>
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</blockquote>
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