RE: [ROOT] Multiple cuts on different axes

From: Philippe Canal (pcanal@fnal.gov)
Date: Wed May 14 2003 - 20:31:30 MEST

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Hi Phil,

This is not supported by TTree::Draw.  Instead you will need to use
TTree::MakeSelector.

Cheers,
Philippe


-----Original Message-----
From: owner-roottalk@pcroot.cern.ch
[mailto:owner-roottalk@pcroot.cern.ch]On Behalf Of Philip Symes
Sent: Wednesday, May 14, 2003 1:09 PM
To: roottalk@pcroot.cern.ch
Subject: [ROOT] Multiple cuts on different axes


Hi,
I'm dealing with data that has been sent to me as a ROOT tree in 2 channels,
so I can plot histograms using the cuts
mytree->Draw("mean","readoutType==1")
or
mytree->Draw("mean","readoutType==2").
My problem is that I want to plot the mean of readoutType 1 against that of
readoutType 2.
That means that I need a different cut on the y-axis to that on the x-axis.
I've asked around, but no-one seems to know how to do it. Is it possible?

Many thanks,
Phil

--
Philip Symes,
MINOS Project,
Sussex University
& Soudan Underground Mine, MN.

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