<html dir="ltr"> <head> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> <style type="text/css" id="owaParaStyle">P {margin-top:0;margin-bottom:0;}</style> </head> <body fpstyle="1" ocsi="0"> <div style="direction: ltr;font-family: Tahoma;color: #000000;font-size: 10pt;">Dear Authors, <pre> I am preparing rivet routine for a CMS analysis in CMSSW release 8_1_0. I am facing issues when using flat2yoda and root2yoda scripts 1.) flat2yoda : It gives following error : File "/cvmfs/cms.cern.ch/slc6_amd64_gcc530/cms/cmssw/CMSSW_8_1_0/external/slc6_amd64_gcc530/bin/flat2yoda", line 23 opts, args = parser.parse_args() ^ SyntaxError: invalid syntax I looked into the /cvmfs/cms.cern.ch/slc6_amd64_gcc530/cms/cmssw/CMSSW_8_1_0/external/slc6_amd64_gcc530/bin/flat2yoda file and found that on line 21, the closing bracket is missing. I think this could be the source of the error. I was suggested to write to the authors, to get it fixed in subsequent CMSSW releases. It could be great if you can look into this. </pre> 2.) root2yoda : I tried using this script giving TH1D histogram as input, in the same CMSSW version. But the output yoda file varies my input cross-section numbers and I get different cross-sections values . I am using the following command for root 2 yoda conversion : root2yoda Data_muon.root It gives the Data_muon.yoda as output. I tried plotting these outputs using rivet-mkhtml Data_muon.yoda command, but it gives .dat file as output. I even tried comparing this Data_muon.yoda to MC, but the output histogram only shows the MC distribution. I am attaching the Data_muon.root and Data_muon.yoda with this mail. Could you please suggest me what I am doing wrong. Many thanks in advance.</div> </body> </html>