TTree::Draw() - using a histogram to control binning

ROOT
1

I am using root v5.34/01 on Windows

I use TTree::Draw(“y:x>>h(,,,,,)”). The reference guide for TTree::Draw() (root.cern.ch/root/html534/TTree.html#TTree:Draw) says

My question is: How do I restore the binning to be automatic?

Here’s an example of what I am talking about: First plot made with Draw(“v:z”)

R79_157726 v_z 1.gif600×600 5.24 KB


Second plot made with Draw(“vmbmon-vmfmon:z>>h(10,0,3000000,10,1950,2150)”)
R79_157726 vmbmon-vmfmon_z.gif600×600 6.48 KB


Third plot made same as first: Draw(“v:z”)
R79_157726 v_z 2.gif600×600 5.2 KB

  • see how it gets clipped? How do I undo the effect of the Draw() w/ histo project?

Thanks
Ed

2

Hi Ed,

We’ll investigate and get back to you as soon as possible.

Thank you,

Enric

3

If you like what the automatic binning does, simply do not use the histogram definition and get the created histogram in “htemp” after the plot.