Hi, I am trying to plot two arrays of data using TGraph. I seem to get a segmentation fault when using the constructor, but dont understand why. I just did, TGraph *gr1 = new TGraph(size, tau_mom_t, cos_theta_t); size is an integer, and the latter two arrays are arrays of doubles. The complete error message is: *** Break *** segmentation violation Root > Function pvstheta() busy flag cleared pvstheta is my function that I created. Someone posted a reply to a similar question before but I didnt understand the answer. Thanks for your help, Mark. -- -------------------------------------------------------------------------------------------- Mark Hodgkinson phone (+44)(0)161 2754150 Office 7-11 email markhod@hep.man.ac.uk HEP Group Schuster Laboratory University of Manchester Oxford Road Manchester England http://www.hep.man.ac.uk/~markhod
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