[ROOT] ProjectionX, ProjectionY

From: Mikael Bonnier (mikaelb@df.lth.se)
Date: Mon Sep 22 2003 - 13:12:52 MEST 

Hi, I'm new to this list.

I'm using ROOT 3.05/05 on Linux RH9.

I have a problem getting ProjectionX and ProjectionY to
work. I have a TCanvas containing a 2D-histogram (TH2F)
that is containing some 200000 events. There are
about 400 by 400 bins and the data is [0,2500] by [0,2500].
When I right-click and choose ProjectionX and enter d as
option I get a new histogram but it's empty, even though the
2D-histogram contains a lot of data. As I understand it,
ProjectionX kind of should drop all dots onto the x-axis,
or have I misunderstood something? Anyway, this is what I
want to do.

Regards,
// Mikael Bonnier
// Webb: http://www.df.lth.se/~mikaelb/
// E-post: mikaelb@df.lth.se
// ICQ # 114635318
// Mob/SMS: 0701-40 76 89
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