more on profiles

From: Wolfgang Korsch (wkorsch@server1.pa.uky.edu)
Date: Tue Mar 25 1997 - 15:44:43 MET


   Hi ,
    I used the profile option a lot yesterday and I encountered 
    some crashes which I don't understand at all.
    I have an ascii file which has x and y values (both have format
    'real'). The x-values range from -200.to 200.
    Now I want to generate some profile plots and therefore I do the
    following:
    
    Root> ntuple->Draw("y:abs(x)>>hprof","x>0","prof");
                    
                    
          ---> works fine
          
    Root> ntuple->Draw("y:abs(x)>>hprof","x>67","prof");
     
     
          ---> works fine
          
          
    Root>  ntuple->Draw("y:abs(x)>>hprof","x>68","prof");
    
    
           ---> floating point exception       
           
           
           (I also get often a 'floating point exception' when
            I use intervalls such as 'x>10 &&  x<40')
            
      I tried to define 'hprof' first, but nothing helped.
      
      Otherwise things work fine so far.
      
      Wolfgang



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