root> ntuple.Draw("y:x");
works fine, but displays only the first (20,000 ?) events. That's
ok, then I do
root> ntuple.SetEstimate(1500000);
root> ntuple.Draw("y:x");
and I get either this error
----------------
Error in <RootX11IOError>: fatal X11 error (connection to server lost?!)
**** Save data and exit application ****
---------------
or this error
--------------
*** Break *** write on a pipe with no one to read it
Error in <RootX11IOError>: fatal X11 error (connection to server lost?!)
**** Save data and exit application ****
-------------
Then I have to quit ROOT. I have not gone through exercise
when which error appears.
These error messages do not appear in 1D histograms, i.e
root> ntuple.SetEstimate(1500000);
root> ntuple.Draw("x");
root> ntuple.Draw("y");
works fine.
Now I tried to find the "bad" event and I then I did the following:
root> ntuple.SetEstimate(#_of_bad_event);
root> ntuple.Draw("y:x");
Then I get the following error:
-----------------------
Error in <RootX11Error>: BadLength (poly request too large or internal Xlib
length error) (XID: 0)
----------------------
The ROOT freezes and I have to kill the process.
I cannot see anything wrong with the event.
Any ideas? I run DU 4.0A and ROOT 2.00/05
Thanks.
Wolfgang