<html><head><meta http-equiv="Content-Type" content="text/html charset=windows-1252"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Hi Andy, Chris<div class=""><br class=""></div><div class="">thanks a lot for your reply.</div><div class="">Yes, I am trying to merge normalised Histograms.</div><div class="">ahh, and yes, I have some strange Scaledby values: 5.1279402177630292e+97</div><div class="">I guess this is what causes the problem.</div><div class="">Where are those set, is this an issue of statistics ?</div><div class=""><br class=""></div><div class="">The cpmmand I use is </div><div class=""><br class=""></div><div class="">yodamerge --assume-normalized yoda-files</div><div class=""><br class=""></div><div class="">Thanks again</div><div class="">Cheers</div><div class="">Hannes</div><div class=""><br class=""></div><div class=""><br class=""></div><div class=""><br class=""><div><blockquote type="cite" class=""><div class="">On 13.10.2015, at 11:23, Andy Buckley <<a href="mailto:andy.buckley@cern.ch" class="">andy.buckley@cern.ch</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">Hi Hannes,</span><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">What sort of data object are you merging here? From the y-axis it looks like a normalized histogram rather than {unnormalized histo, profile, ratio}.</span><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">If that's right, yodamerge will look for the ScaledBy attribute of that plot to reverse the normalisation, add all the unnormalised histos together, then rescale by the weighted mean ScaledBy. It *shouldn't* be sensitive to one run having much smaller stats than the others, certainly not in a way that would show up like this.</span><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">If you can provide a bit more detail of what this object is, and how you're trying to merge the runs, we can try to help. You can also plot or take a look inside the .yoda files to see if the individual runs look sane, i.e. have reasonable fill counts and ScaledBy values.</span><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">Andy</span><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">On 13/10/15 08:22, Hannes Jung wrote:</span><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><blockquote type="cite" style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class="">Dear Rivet experts<br class=""><br class="">I am using yodamerge to merge several yoda files (actually it is 1000 or<br class="">so),<br class="">to get reasonable statistics in a reasonable computing time.<br class="">Sometimes I obtain strange results, like in the plot below,<br class="">where the normalization is completely off.<br class="">I am using Rivet 2.4.0, but a similar problem I had with Rivet 2.2.0.<br class=""><br class="">Any idea what this could be ?<br class=""><br class="">Since I am merging 1000 yoda files, it's hard to tell whether it comes<br class="">from one<br class="">specific file.... however, all jobs finished without error...<br class=""><br class="">Thanks a lot<br class="">Cheers<br class="">Hannes<br class=""><br class=""><br class=""><br class=""><br class=""><br class=""><br class=""><br class="">***********************************************************************<br class="">Hannes Jung<br class="">Email:<span class="Apple-converted-space"> </span><a href="mailto:Hannes.Jung@desy.de" class="">Hannes.Jung@desy.de</a><span class="Apple-converted-space"> </span><<a href="mailto:Hannes.Jung@desy.de" class="">mailto:Hannes.Jung@desy.de</a>><br class="">mobile :+49 40 8998 93741<br class=""><a href="http://www.desy.de/~jung" class="">http://www.desy.de/~jung</a><br class="">Tel: +49 (0) 40 8998 3741<br class="">Fax: +49 (0) 40 8994 3741<br class="">DESY, CMS 01B/02.213<br class="">Notkestr.85, 22603 Hamburg, FRG<br class="">***********************************************************************<br class=""><br class=""><br class=""><br class=""><br class=""><br class="">_______________________________________________<br class="">Rivet mailing list<br class=""><a href="mailto:Rivet@projects.hepforge.org" class="">Rivet@projects.hepforge.org</a><br class=""><a href="https://www.hepforge.org/lists/listinfo/rivet" class="">https://www.hepforge.org/lists/listinfo/rivet</a><br class=""><br class=""></blockquote><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">--<span class="Apple-converted-space"> </span></span><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">Dr Andy Buckley, Lecturer / Royal Society University Research Fellow</span><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">Particle Physics Expt Group, University of Glasgow</span></div></blockquote></div><br class=""><div apple-content-edited="true" class=""> ***********************************************************************<br class="">Hannes Jung <br class="">Email: <a href="mailto:Hannes.Jung@desy.de" class="">Hannes.Jung@desy.de</a> <br class="">mobile :+49 40 8998 93741<br class=""><a href="http://www.desy.de/~jung" class="">http://www.desy.de/~jung</a> <br class="">Tel: +49 (0) 40 8998 3741 <br class="">Fax: +49 (0) 40 8994 3741<br class="">DESY, CMS 01B/02.213<br class="">Notkestr.85, 22603 Hamburg, FRG <br class="">***********************************************************************<br class=""><br class=""><br class=""> </div> <br class=""></div></body></html>