RE: [ROOT] Fill weighting with a TTree column.

From: Philippe Canal (pcanal@fnal.gov)
Date: Wed Mar 27 2002 - 17:41:14 MET

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In reply to: Artur Kalinowski: "[ROOT] Fill weighting with a TTree column."
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Hi Artur,

You will be glad to hear that this problem has been 
fixed yesterday (really I mean it :) ).

> Is there a simple way to do this?

Update your cvs repository and try again :)

Cheers,
Philippe.

-----Original Message-----
From: owner-roottalk@pcroot.cern.ch
[mailto:owner-roottalk@pcroot.cern.ch]On Behalf Of Artur Kalinowski
Sent: Wednesday, March 27, 2002 10:16 AM
To: roottalk@pcroot.cern.ch
Subject: [ROOT] Fill weighting with a TTree column.



Hi,
I use 3.03/02 version on Cern Linux RH 6.1
I have Tree with such structure:

event --|
        |-fEvtHdr.fWeight
        |-fHits.fTotal[]    <- TClonesArray
        |-fHits.fChId[]
        |
        |-somethig else

I try to draw somethig like this:

data->Draw("fHits.fTotal","fEvtHdr.fWeight");

And only first item from fTotal array gets proper weight, other get
simply 1.

I figured out somethig like this:
data->Draw("fHits.fTotal","fEvtHdr.fWeight*(fHits.fChId/fHits.fChId)");

(I make matrix 1 from fChId)
Is there a simples way to do this?


Thank you,
Artur

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