<html><head></head><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px"><div id="yui_3_16_0_1_1447585199971_8267" dir="ltr"><span id="yui_3_16_0_1_1447585199971_8397">Dear Ian, </span></div><div id="yui_3_16_0_1_1447585199971_8907" dir="ltr"><span></span><br></div><div id="yui_3_16_0_1_1447585199971_8900" dir="ltr"><span id="yui_3_16_0_1_1447585199971_8899">The mtz was transformed from a cryo-EM mrc file by phenix.map_to_structure_factors, and it contains both label "F" and "F_ampl". When I do phenix.mtz.dump, the labels include H,K,L,F,PHIF,F_ampl,HLA,HLB,HLC,HLD.</span></div><div id="yui_3_16_0_1_1447585199971_8901" dir="ltr"><span></span><br></div><div dir="ltr"><span></span><br></div><div dir="ltr"><span>Smith</span></div><div id="yui_3_16_0_1_1447585199971_8902"><span></span><br></div><div id="yui_3_16_0_1_1447585199971_8881"><span></span><br></div><div id="yui_3_16_0_1_1447585199971_8398"><span></span><br></div><div id="yui_3_16_0_1_1447585199971_8672"><span></span><br></div> <br><div class="qtdSeparateBR"><br><br></div><div class="yahoo_quoted" style="display: block;"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;"> <div dir="ltr"> <font face="Arial" size="2"> On Sunday, November 15, 2015 11:03 PM, Ian Tickle <ianjt05@gmail.com> wrote:<br> </font> </div> <br><br> <div class="y_msg_container"><div id="yiv1710108066"><div><div dir="ltr"><div><div><div><div><br clear="none">Hi, I assume what you mean is "what is the difference between the column labelled 'F' and the one labelled 'F_ampl' ?" in your MTZ file. Since MTZ column labels are effectively arbitrary and may be user-specified, that is clearly an impossible question to answer without knowing the history of your MTZ file.<br clear="none"><br clear="none"></div>The column labelled 'SIGFP' would normally be the standard deviation of the 'FP' column (assuming there is such a column), though there's no absolute requirement that this be the case (it just makes life easier for everyone if it is!), so again it's impossible to say which amplitude column the SIGFP column is related to without knowing the history of your file.<br clear="none"><br clear="none"></div>Bottom line is: you have not supplied sufficient information to make it possible to answer your question.<br clear="none"><br clear="none"></div>Cheers<br clear="none"><br clear="none"></div>-- Ian<br clear="none"><div class="yiv1710108066yqt8642681522" id="yiv1710108066yqt33592"><div class="yiv1710108066gmail_extra"><br clear="none"><div class="yiv1710108066gmail_quote">On 15 November 2015 at 02:27, Smith Lee <span dir="ltr"><<a href="mailto:00000459ef8548d5-dmarc-request@jiscmail.ac.uk" target="_blank" rel="nofollow" shape="rect" ymailto="mailto:00000459ef8548d5-dmarc-request@jiscmail.ac.uk">00000459ef8548d5-dmarc-request@jiscmail.ac.uk</a>></span> wrote:<br clear="none"><blockquote class="yiv1710108066gmail_quote" style="margin: 0px 0px 0px 0.8ex; padding-left: 1ex; border-left-color: rgb(204, 204, 204); border-left-width: 1px; border-left-style: solid;"><div><div style="color: rgb(0, 0, 0); font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px; background-color: rgb(255, 255, 255);"><div> Dear All,</div><div><br clear="none"></div><div dir="ltr">For a mtz file, will you please introduce to me the difference between label "F" and label "F_ampl"? For the label "SIGFP", is it the deviation related to label "F" or label "F_ampl"?</div><span class="yiv1710108066HOEnZb"><font color="#888888"></font></span><div dir="ltr"><br clear="none"></div><div dir="ltr"><br clear="none"></div><div dir="ltr">Smith</div></div></div></blockquote></div><br clear="none"></div></div></div></div></div><br><br></div> </div> </div> </div></div></body></html>