From 04563f7356865cf75d5fede74cdc7d12b8763779 Mon Sep 17 00:00:00 2001
From: Rene Brun <Rene.Brun@cern.ch>
Date: Mon, 14 Dec 2009 19:15:57 +0000
Subject: [PATCH] From Wouter; update release notes
git-svn-id: http://root.cern.ch/svn/root/trunk@31882 27541ba8-7e3a-0410-8455-c3a389f83636
---
roofit/doc/v526/index.html | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/roofit/doc/v526/index.html b/roofit/doc/v526/index.html
index 889b1ccbd50..a62c24dbf40 100644
--- a/roofit/doc/v526/index.html
+++ b/roofit/doc/v526/index.html
@@ -207,6 +207,15 @@ RooAddPdf::genmodel[ Nsig * sig + Nbkg * bkg ] = 0.502276
w->factory("SUM::model(fsig[0,1]*g,u)")
w::model.fitTo(d12a)
</pre></li>
+ For virtual composite dataset it is also possible to join a mix of binned and unbinned datasets
+ (representation as a <tt>RooDataSet</tt> with weights)
+
+<li><b>The setWeightVar() method has been deprecated as it is very difficult to support on-the-fly redefinition
+ of the event weight variable in the new data store scheme</b>. To declare a data set weighed,
+ use the WeightVar() modifier of the constructor instead,e.g.:
+<pre>
+ RooDataSet wdata("wdata","wdata",RooArgSet(x,y,wgt),WeightVar(wgt)) ;
+</pre>
<li>
The <tt>RooHist</tt> class that represents data as a histogram in a <tt>RooPlot</tt> has been modified
--
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