[root] Log of /trunk/roofit/roofitcore/src/RooNumConvPdf.cxx

Revision 23538 - (view) (download) (as text) (annotate) - [select for diffs]
Modified Thu Apr 24 21:02:00 2008 UTC (6 years, 9 months ago) by wouter
File length: 6937 byte(s)
Diff to previous 23134

Import changes from development branch

==== Date: Wed Feb 20 22:33:28 2008 =====

   o RooRealSumPdf

     - Do _not_ use normalization of RooAbsPdf input components
       in numerator of RooRealSumPdf expression since it is 
       already explicitly occurring in denominator of RooRealSumPdf.
       (Fixes wrong normalization reported by Tristan)


   o RooObjCacheManager

     - Register owner of cache with each cache elememt to
       facilitate callbacks


   o RooAbsCacheElement

     - Add storage for pointer to owner of cache and
       supply setOwner() function


   o RooAbsPdf

     - Use RooObjCacheManager callback mechanism to zero
       'last used normalization' pointer in RooAbsPdf
       when the cache-owned object pointed is about
       to be deleted. 


   o RooAbsArg

     - Make crc32 function static


   o RooWorkspace

     - Add CodeRepo nested class that allows to store C++ code
       of RooAbsArg derived classes that are not in ROOT distribution
       but are contained in workspace. When reading any missing
       class, code is compiled on the fly allowing for transparent
       reading of workspace object from file. Code is found in
       location pointed to from TClass objects. Additional search
       path for declaration and implementation files can be provided
       to be able to handle non-trivial cases.

     - Add WSDir nested class that represents information contained
       in workspace as read-only TDirectory for easy interactive use. 
       Directory representation is created using makeDir() member function.


  o LinkDef3

     - Add nested classes in RooWorkspace

===== Date: Wed Mar 26 23:04:26 2008 =====

   o RooProdPdf

     - Fix typo in ctor documentaion

     - Improve error message in expectedEvents() when no extendable p.d.f.s are found

     - Implement getConstraints() function to retrieve constraint p.d.f terms from product
       expression given set of observables and set of parameters to be constrained.


   o RooMsgService

     - Add PROGRESS message level between INFO and WARNING

     - Add globalKill level for messages to be able to quickly eliminate all messages below
       a given level without interfering with the stream structore of RooMsgService


   o RooPrintable

     - Implement new printing interface with more details control over items printed trhough contents enum
       (multiple ORable options) and style of printing (inline, single line, (verbose) multiline) with style 
       enum (exclusive options). 

     - Introduce generic virtual functions for printing of name,title,value,arguments,
       and extras of each object. 

     - Each class can overload the default contents used for all printing
       uses (inline,verbose,standard) etc as well as the default printing style invoked by Print()


   o RooPlot,RooGenContext, RooAbsRealLValue,RooDataSet,RooNameSet,RooCustomizer, RooAbsGenContext, RooAddModel,
     RooFitResult,RooCurve,RooAbsAnaConv,RooHist,RooAbsReal,RooAbsCollection,RooAddPdf,RooTable,RooAbsData,
     RooMappedCategory,RooFormula,RooFormulaVar,RooCatType,RooRealVar,RooAbsArg,RooAbsPdf,RooPlotable,RooRealIntegral,
     RooAbsBinning,Roo1DTable,RooAddGenContext,RooGenericPdf,RooResolutionMode,RooAbsHiddenReal,RooMultiCategory,
     RooAbsString,RooSetProxy,RooProdGenContext,RooConvGenContext,RooGenCategory,RooGrid,RooSimGenContext,
     RooThresholdCategory,RooAcceptReject,RooSuperCategory,RooEllipse,RooNumIntConfig,RooAbsCategory,RooListProxy,
     RooLinearVar,RooTreeData,RooTreeData

     - Update to new RooPrintable interface


   o RooGenContext,RooAbsGenContext,RooAddGenContext,RooProdGenContext,RooConvGenContext,RooSimGenContext

     - Implement attach() function to simplify management of changing parameters during lifetime of context


   o RooAbsRealLValue

     - Eliminate inFitRange() warning message as it is gives too many false warnings when used with
       parameterized ranges


   o RooCustomizer

     - Make owning of contents optional to simplify release of created components
     

   o RooAbsReal

     - Implement new evaluation error logging mechanism. Rather than passing zero p.d.f values, push error message with
       details on a static stack (if logging is enabled by e.g. RooMinuit). 

     - Augment functionality of createIntegral: explicitly allow integration over ranges with bounds parameterized in 
       in terms of other integrated observables. Integrals of this type are automatically recognized and cast
       as recursive integrals in case of >1-D integrals to integrate over requested phase space. 

     - Add createIntObj() helper function for above functionaliy.

     - Eliminate a lot of commented out debug code from createPlotProjection()

     - Modify fillHistogram(): when plot observables are cloned, explicitly interconnect clones again to facilitate
       proper plotting of N-D integrals with entangled parameterized ranges

     - Add ScaleFactor() argument to fillHistogram to control use of histogram density correction scale factor in Z-scale
       of filled histogram


   o RooProduction

     - Fix bug for persistence


   o RooRealMPFE

     - Extend client/server protocol with message to retrieve RooAbsReal evaluation error log from server side and
       merge with error log on client side


   o RooRealVar

     - Introduced concept of non-shared alternative binnings(ranges) required to accommodate RooParamBinning ranges
       that cannot be shared across instances because of their client/server connection to other objects in p.d.f
       expression trees. Modify setBinning to automatically recognize non-shareable binnings and divert those to
       non-shared alternative binning container.

     - Add setRange([const char*,] RooAbsReal&,RooAbsReal&) methods to simplify creation of parameterized ranges.


   o RooAbsArg

     - Introduce concept of owned components with addOwnedComponents() interface to be able to make any RooAbsArg
       object own any number of others. This can be used to simplify the memory management of object trees 

     - Introduce prohibitServerRedirect mode that will trigger fatal assert if any server redirect is attempted
       to thus configured object. Useful as debugging tool to track faulty copy constructors that leave clone
       object tree unintentionally connected to the original object tree.

     - Migrate fixed--name-field management tool from RooAbsReal to RooAbsArg. Used to accomplish regular
       formatting in RooAbsCollection::printStream.

     - Add concept of transient boolean attributes that are not tranferred on copy construction. Mostly useful
       for debugging.

     - Extend leafNodeServerList and treeNodeServerList to distinguish to types of leaf-nodes: strict leaf modes
       in the sense of the client-server tree structure and 'physical' leaf nodes that do not recurse into
       nodes that have isDerived()==kFalse. The latter corresponds to the original concept of leaf nodes / variables,
       which the former mode, a new addition, explicitly exposes any shape servers contained in parameterized
       ranges of variables.

     - Fix logic error in recursiveServerRedirect: do not recurse into nodes that are in the replacement list themselves.

     - Fix bug in printCompactTree(): value/shape clients were not always properly indicated.

     - Add getAllConstraints() method that finds all RooProdPdfs in expression trees and harvest constraints from all
       of these from the getConstraint() method


   o RooAbsPdf

     - Implement new evaluation error logging mechanism for negative p.d.f values and zero normalization integrals

     - Add Constrain(const RooArgSet& pars) and ExternalConstraints(const RooArgSet& pdfs) arguments to fitTo() method.
       The Constrain() method retrieves any constraints p.d.f. on parameters multiplied in any RooProdPdf in the normal 
       p.d.f expression and adds those to the likelihood that is minimized. Only constraints on the listed parameters
       will be picked up. Multiple constraints per parameter may exist. The ExternalConstrains() argument implements
       similar functionality except that provided external constraint p.d.f.s are added rather than internal constraints.

     - Fix potentially fatal bug in print statement in getContext()

     - Add new method createCdf() to create a cumulative distribution function from given p.d.f. Given a set of observables x, 
       the returned c.d.f is implemented in terms of a RooRealIntegral of p.d.f(x') over a parameterized range from [ 0 - x ].


   o Roo1DIntegrator

     - Improve error message


   o RooRealIntegral

     - Fix bug in calculation of shape dependencies on observables.

     - Add handling of dependencies of integral value on values of objects representing parameterized ranges of
       integrated observables.     


   o RooMCStudy

      - Add Constrain(const RooArgSet& pars) and ExternalConstraints(const RooArgSet& pdfs) arguments to constructor.
        In addition to passing these arguments to the fitTo() call of the fit stage, modify event generation as
        follows: instead of sampling events from 'static' generator p.d.f, sample value of constrained parameters
        from joint constraints p.d.f and sample observables at those parameter settings. Save the generator parameters
        for each toy as these change per toy. Change the pull calculation such that it uses the per-event truth values
        rather than the per-study truth value if constraints are used.


   o RooAddition

     - Fix bug in evaluate() related to persistence


   o RooMinuit

     - Enable/disable new evaluation error logging mechanism prior to and just after each MINUIT call.

     - Print logged error messages, if any, in glue function


   o RooProjectedPdf

     - Fix important bug: normalization set should always include integration set for each configuration


   o RooGlobalFunc

     - Add definition of Scaling(),Constrain() and ExternalConstraints() helper functions 


   o RooUniformBinning
  
     - Remove dedicated print function as it output is identical to that of the generic print function in RooAbsBinningx

  
   o RooAbsBinning

     - Add virtual methods isParameterized(),lowBound() and highBound() to be to detect and analyze parameterized binnings
       through abstract interface

     - Add isShareable() method to be able to separate shareable and non-shareable binnings in RooRealVar.

     - Add insertHook() and removeHook() function to allow connection of possible proxies present in binning to
       owning RooAbsArg.


   o RooWorkspace

     - Improve code import facility by introducing a class->file mapping step in the CodeStore to correctly handle cases where 
       multiple classes are defined in a single file.

     - Add check that TClass interface actually yields file names.

     - Only require default constructor to be present for non-abstract classes. It should be there for abstract classes as
       well but current TClass::HasDefaultConstructor() method will not tell us.

   o RooTreeData

     - Improve renameVariable() method to not only rename the RooAbsArg branch buffer but also any TTree branches involved as well.
       While the tree branch names are generally invisible to the user, having branch names that are different from branch buffer names
       may cause branch naming conflicts in merge() that are not detectable as branch buffer naming conflicts.


   o RooParamBinning

     - New class implementing binning with low and high points defined by external RooAbsReal objects 


   o RooConstrainSum

     - Helper class for RooAbsPdf to represent likelihood of collection of constraint p.d.f.s.


==== Date: Fri Mar 28 10:04:57 2008 =====

   o RooRecursiveFraction

     - Helper function for RooAddPdf that calculates recursive fraction 
       f1*(1-f2)*(1-f3) from a given set of plain fractions


   o RooAddPdf

     - Add flag to ctor to optionally interpret fractions as recursive fractions.
       If activated it constructs the recursive fractions using RooRecursiveFraction
       from the original fractions


   o LinkDef3.h, Module.mk

     - Add new class RooRecursiveFraction

==== Date: Tue Apr  1 22:42:19 2008 ====

   o RooDataWeightedAverage

     - New implementation of RooAbsOptTestStatistics that calculates data weighted
       average of any RooAbsReal. This class serves as successor of RooDataProjBinding
       that no longer complies with new optimization scheme. 

   o RooRealBinding

     - Implement name() function for more useful error messaging in integration


   o RooChi2Var,RooNLLVar

     - Follow changes in base class


   o RooAbsReal

     - In plotOn() support binning flag in ProjWData(). Reimplement data-weighted projections
       using new RooDataWeightedAverage class instead of RooDataProjBinding which does not
       work with new generic function optimization scheme. 

     - Add support for NumCPU() argument
       in plotOn() to facilitate multi-processor calculation of projections. Extend NumCPU()
       argument to pass interleaving option in MP splitting mode of RooAbsTestStatistic

     - Move fixAddCoefNormalization() and fixAddCoefRange() from RooAbsPdf to RooAbsReal
  

   o RooAbsTestStatistic

     - Generalize functionality: allow RooAbsReals as input arguments instead of RooAbsPdfs only.
       Also add virtual globalNormalization() function that allows to apply a global normalization
       term after combinedValue() operation to facilitate functionality of RooDataWeightedAverage.

     - Add option to split data in multiprocessor mode in interleave mode instead of in bulk mode.
       Interleave mode is useful for parallel processing of histogram data where bulk partitions
       may not contain equal amount of non-zero data points leading to non-optimal load balancing
       between processes.


   o RooAbsPdf

     - Move fixAddCoefRange() and fixAddCoefNormalization to RooAbsReal to support operation of
       new generalized RooAbsTestStatistic
     

   o RooIntegrator1D

     - Use name() of RooAbsFunc() to clarify warning and error messages.


   o RooRealIntegral

     - Rename _operMode to _intOperMode to avoid shadowing of equally named data member in RooAbsArg

     - Fix bug in recursive printing


   o RooSetProxy

     - Fix bug in print()


   o RooGlobalFunc

     - Modify ProjWData() and NumCPU() helper functions with extra optional argument


   o RooAbsOptTestStatistic

     - Follow changes in RooAbsTestStatistic


   o RooAbsFunc

     - Add virtual name() function to facilitate better error and warning messages from integrators

=== Date: Tue Apr 15 17:57:32 2008 ===

   o RooMsgService

     - Add option to prefix streamed messages with process ID to simplify
       debugging of parallel fits


   o RooAbsProxy

     - Add optional addContents flag to print()


   o RooArgProxy, RooSetProxy, RooListProxy

     - Implement addContents flag in print()


   o RooAbsReal

     - Reimplement stack of logged error messages in terms of custom EvalError class. 
       A separate list<EvalError> is now kept for each object that reports an error.
       In addition to the given error message a record is constructed of the proxy
       values at the time of reporting. 
 
     - In printEvalErrors() add option to restrict number of reported items per node.
       If number is zero, only number of errors per node is shown (without details)


   o RooRealMPFE
 
     - Adjust ReportErrors message to changes EvalError implementation in RooAbsReal.
 
     - Make sure to synchronize remote error logging state with state of parent process
       before each evaluate()


   o RooRealVar

     - Move printing of error from printValue() to printExtras()


   o RooNLLVar

     - Fix bug in setting of interleave parameter of base class in certain ctors


   o RooAbsPdf

     - Improve passing of eval error messsages by make separate messages for NaN
       and negative values and including details in the error message

     - Add PrintEvalError(Int_t nErr) option to fitTo() to control new eval error
       message control system

     - Int printValue show both value (raw from evaluate()) as well as most recently
       used normalization value (if available)


   o RooMinuit

     - Interface new eval error logging control by adding setPrintEvalErrors(Int_t numEvalErrors)

=== Date: Thu Apr 24 15:11:59 2008 ===

   o Various classes

     - Fix all -Wshadow compiler warnings

=== Date: Thu Apr 24 16:32:21 2008 ===

   o RooMsgService

     - Use TSystem::GetPid() rather than getpid() for portability


   o RooAbsReal

     - Make nested class EvalError public


   o RooWorkspace

     - Fix windows compiler warning

========================================

   o RooBanner

     - Increment version tag to 2.40

Revision 20161 - (view) (download) (as text) (annotate) - [select for diffs]
Modified Mon Oct 1 16:28:25 2007 UTC (7 years, 3 months ago) by wouter
Original Path: trunk/roofitcore/src/RooNumConvPdf.cxx
File length: 6943 byte(s)
Diff to previous 19826

   o RooAbsCache

    - New abstract base class for cache objects associated with RooAbsArgs.
      Caches register themselves with the owning RooAbsArg and propagate
      all necessary state changes and meta information to objects in the cache


   o RooCacheManager

    - Concrete template implementation of RooAbsCache with an interface
      and functionality styled after RooNormListManager. The template class
      provide no special handling for cache contents that includes RooAbsArg
      objects and does not forward hook calls. It is thus mostly intended
      to cache basic types indexed on a normalization/integration configuration


   o RooObjCacheManager

    - Class derived from RooCacheManager<RooAbsCacheElement> that implements
      all proper call forwarding and handling of state and other meta information
      to RooAbsArg objects embedded in the cache elements. To facilitate this
      functionality the RooAbsCacheElement defines a pure virtual method
      containedArgs() that must be implemented to expose its contents to
      the cache manager. The default behavior on a serverRedirect hook is
      to sterilize the cache. OperMode changes are not forwarded by default
      to the cache contents as cached objects do not necessarily have the
      same operation mode (e.g. if the cache contains an integral of its owner).
      Any calls to optimizeCacheMode(), printCompactTreeHook(), and findConstantNodes()
      are forwarded. Moreover, optimizeCacheMode() calls are remembered and
      any objects inserted in the cache after such a call was received will be
      optimized upon insertion in the cache

   o RooAbsCacheElement

    - Abstract base class for objects to be managed by RooObjCacheManager. Each
      object must in addition to its payload implement the containedArgs()
      member function that exposes the RooAbsArg object content to the manager
      for processing. The argument passed to containedArgs() indicates the use
      case for the returned list of objects, allowing the cache payload to
      return different lists depending upon use. This is for most applications
      not required.


   o RooAbsCachedPdf

    - Abstract base class derived from RooAbsPdf for p.d.f.s that implement 
      value caching in a grid over the entire domain of the observables. 
      The base class implements the overall caching logistics and manages
      the RooDataHists and RooHistPdfs that respresent the cached contents.
      Derived classes must inputBaseName() defined a unique name prefix for
      all cache objects, actualObservales() and actualParameters() to
      determined the actual observables and parameters given a set of 
      available observables and fillCacheObject() which should fill the
      RooDataHist cache for a given obs/params configuration with the
      p.d.fs values.


   o RooAbsSelfCachedPdf

    - Abstract base class derived from RooAbsCachedPdf that implements
      all of the required logistics in RooCachedPdf and only require
      derived classes from RooAbsSelfCachedPdf to implement evaluate().
      Any class derived from RooAbsPdf can thus be trivially switched
      to derived from RooAbsSelfCachedPdf and gain the caching functionality.
      

   o RooCachedPdf

    - Concrete class derived from RooAbsCachedPdf that implements
      the caching of an externally provided p.d.f in the constructor.


   o RooFFTConvPdf

    - Concrete class derived from RooAbsCachedPdf that implement generic
      numeric convolution of two input p.d.f.s using FFT technique
      and convolution theorem. Actual FFTs are calculated by FFTW
      through TVirtualFFT interface in ROOT. Present implementation only supports 
      convolution in one dimension, but this will be extended later
      as there are no fundamental limitations in RooAbsCachedPdf nor FFTW.
 

   o RooHistPdf

    - Moved from RooFit to RooFitCore because it is used by caching classes


   o RooProdPdf

     - Use new RooObjCacheManager to store partial objects

     - Fix memory leak (already patched in 15.0.14h)


   o RooDataHist

     - Use new RooCacheManager template to cache partial bin volumes

     - Add new set(),setAllWeights() method to update current weight and all weights
       respectively, for use in cached p.d.f.s

     - Add sliceIterator() that iterates over all bins in a lower dimensional 
       slice of the dataset


   o RooDataHistSliceIter

    - Class derived from TIterator that implements the iteration
      over a slice in a reduced number of dimensions in a RooDataHist


   o RooMsgService

     - Speed up processing of debug streams in cases where no debug streams are active

     - add macros series oocoutX and oocxcoutX that allow to associate message with
       a different object than *this

   o RooRealBinding

     - Interface new setValue method that allows value to be set outside default
       domain, but inside given alternate named range. For use in numeric integrator
       bindings


   o RooAbsRealLValue

     - Add new inRange() method with range name specifier to check against chosen
       range instead of default range


   o RooCmdConfig

     - Fix dangling return pointer problem in decodeStringOnTheFly() method


   o RooNameSet

     - Fix bug in refoll()


   o RooChi2Var, RooNLLVar

     - Add processing of AddCoefRange() named argument


   o RooConvCoefVar

     - Hold p.d.f in proxy without value/shape state propagation to obtain
       correct dependency of RooConvCoefVar through separate set proxy
       with parameters that do have state propagation

     - In getAnalyticalIntegral() ask for integration coefficient specific
       to coefficient (following interface change in RooAbsAnaConv)


   o RooEfficiency

     - Follow interface change in RooCategoryProxy


   o RooAbsAnaConvPdf

    - Use new RooObjCacheManager to hold normalization and coefficient representations

    - Extend getCoefAnalyticalIntegral() interface so that each coefficient
      can have a separate integration configuration

    - Modify makeCoefVars() such that it constructs the RooConvCoefVars with
      actual dependents for each coefficients, rather than inserting dependencies
      of any of the coefficients in each coefficient. This logic requires support
      from the implementation class that is interface through a new member function
      coefVars()


   o RooAbsReal 

    - Add Boolean data member treeVar that indicates is value buffer is also
      branch buffer of a tree. This information is already present in the RooAbsReal
      but is relatively expensive to retrieve and is always needed in the inner
      loop of data set operations. This extra member significantly speeds up operations

    - Remove superfluous _norm[] token in name returned by integralNameSuffix() if 
      no normalization set is supplied.

    - Add a fillDataHist() method that fills a given RooDataHist with a sampling
      of the given function. Added for support of caching p.d.f.s


    - Downgrading warning on non-dependent projection variables in plotOn() to
      a debug level message

    - Remove function optimizeDirty(),doConstOpt(),undoConstOpt(),findCacheableBranches()
      findUnusedDatasetVariables() and findRedundantCacheServers() as part of reorganization
      of optimization functionality.


   o RooAbsCollection

    - Use iterator semantics instead of vector semantics to process RooLinkedList
      contents in assignment operator

    - Add utility function contentsString() returning stl string with names
      of contents


   o RooAddPdf

    - Rewrite cache management using new RooObjCacheManager that holds projection
      integrals, range integrals and supplemental normalization lists


   o RooAbsOptGoodnessOfFit

    - Improve handling of normalization ranges and reference ranges for test statistics
      containing RooAddPdfs. New named argument in fitTo() and RooNllVar::ctor() pass
      reference range for fractions in RooAddPdf components that do not have an explicit
      fixed definition already. Name all normalization ranges explicitly after the
      subrange to which the're applied to avoid name clashes and conflicts if multiple
      normalization ranges are involved.

    - Rewrite informational messages through RooMsgService

    - Implement new constOptimizeTestStatistic() function that signals all test statistic
      components of a RooAbsArg expression tree to perform their constant term optimization

    - Implement new optimizeCaching() driver function that changes default lazy-evaluation-with-caching
      scheme to test statistic scheme where only parameters objects propagate state changes and
      where all components that depend directly or indirectly on observables have lazy evaluation
      disabled. Changes to p.d.f objects are delegated to RooAbsPdf::optimizeCacheMode(). Changes
      to dataset are delegated to RooAbsData::optimizeReadingWithCaching()

    - Implement new optimizeConstantTerms() function that is back end for constOptimizeTestStatistic
      implementation. 


  o RooAICRegistry, RooNormSetCache

    - Remove tracking of allocation cycles of RooArgSets as this scheme is superseded by
      memory pool mechanism for RooArgSet allocation


  o RooMappedCategory

    - Follow interface change in RooCategoryProxy.


  o RooRealMPFE

    - Follow reorganization of optimization functionality: implement new constOptimizeTestStatistic
      function for forwarding to slave processes.


  o RooRealVar

    - Add new setVal() function with range name to facilite setting of values that are outside
      default range, but inside specified alternate range. Needed for numeric integration and
      certain RooAddPdf coefficient projection.


  o RooAbsArg

    - Make state management functions public [is/set][Value/ShapeDirty](), setOperMode90
  
    - Add static _flipAClean boolean to support setACleanAdirty() static method.

    - Implement mechanism for registration of cache objects with base class RooAbsCache.
      Forward all calls to operModeHook(), redirectServersHook(), optimizeCacheMode()
      and printCompactTreeHook() to all caches for further processing
   
    - Define constOptimize() function and provide default implementation that forwards
      to all servers 

    - Implement optimizeCacheMode() function that puts expression tree in optimized
      caching for test-statistics operations (only cache/lazy evaluate nodes that
      do not (indirectly) depend on observables

    - Implement findConstantNodes() function that identifies all nodes that depend
      exclusively on constant observables and >0 observables that are eligible
      for precalculation and caching in test statistics operations by 
      RooAbsOptTestStatistic::optimizeConstantTerms()

    - Define constOptimizeTestStatistics that signal an expression tree that any
      embedded test statistic objects should perform their constant term optimization.
      Default implementation in RooAbsArg forwards call to all servers.


  o RooAbsPdf

    - Use new RooObjCacheManager to manage normalization integrals cache.

    - Process new SumCoefRange() option in fitTo() that sets the coeffient
      interpretation range for all embedded RooAddPdf objects of which
      the interpretation range was not explicitly set

    - Extend interface of fixAddCoefNormalizationSet(): add extra argument
      that controls if AddCoef normalization set are forcibly overruled
      for objects that already have an explicit range setting.

  
   o RooRealIntegral 

    - Add some informational messaging through RooMsgService, rewrite existing ones

    - Speed up numeric summations by precreating the involved RooSuperCategory
      in the ctor rather than in evaluate().

    - Fix bug in dependency insertion: explicitly require servers to be value
      server to avoid pulling in fake dependents.
    
    - Remove obsolete data members

    - Implement new setACleanADirty() function that atomically flips state of
      all AClean objects to ADirty for the duration of the integration step.
      Replaces the much more expensive prepareACleanFunc() that did this
      only for the objects involved.

    - Process factorizing terms in integral only if the list is not empty

    - Process Jacobian terms in integral only if the list is not empty


  o RooAddGenContext

   - Adapt to cache management chanches in RooAddPdf


  o RooNumIntFactory

   - Use STL classes for internal memory management


  o RooSetProxyy

   - Implement operator new() and operator() delete as required because
     RooArgSet implements them 


  o RooAbsGoodnessOfFit

   - Store and forward AddCoefRange information for embedded RooAddPdf objects

   - Implement constOptimizeTestStatistic() and forward to components


  o RooErrorVar

   - Follow inRange() interface change in RooAbsRealLValue


  o RooConvGenContext

    - Adapt code to make it work with both RooAbsAnaConv objects and
      the newly introduced RooFFTConvPdf


  o RooMinuit

    - Follow reorganization of optimization functionality


  o RooProjectedPdf

    - Store projection using new RooObjCacheManager


  o RooGlobalFunc

    - Add RooFit::SumCoefRange() named argument for RooAbsPdf::fitTo() 
      and RooNLLVar::ctor() and RooChi2Var::ctor()


  o RooClassFactory

    - Extend existing makePdf(),makeFunction and makeClass() functions
      to also accept RooAbsCategory arguments, to accept an optional string
      inserted as the return value expression inserted in the 
      evaluate() method of the class created, as well as as option string
      specifying one or more analytical integrations of the given function
      expression that will be advertised in the generated getAnalyticalIntegral()
      code and implemented in the generated analyticalIntegral() code

    - Add makeAndCompileFunction() and makeAndCompilePdf methods that
      generate the code and immediate compile it through ROOTs ACliC interface.
      These functions have a simpler interface because the list of arguments
      of the function to be created can be specified as a const RooArgSet&
      rather than a string with a list of names, thus making it easier
      for on-the-fly definition of compiled objects.

    - Add defineFunction() and definePdf() methods define and compile
      a function/pdf using the above functions and immediately instantiate
      an object of the given type passing the specified RooArgSet arguments
      to the constructor of the object. These functions make a compiled
      equivalent of RooFormulaVar based on the TFormula interpreter, i.e.

           RooAbsReal* f = new RooFormulaVar("f","D(1-2w)",RooArgSet(D,w)) ;

      becomes
       
           RooAbsReal* f = RooClassFactory::defineFunction("f","D(1-2w)",RooArgSet(D,w)) ;

   
  o RooAbsCategory

   - Add Boolean data member treeVar that indicates is value buffer is also
     branch buffer of a tree. This information is already present in the RooAbsReal
     but is relatively expensive to retrieve and is always needed in the inner
     loop of data set operations. This extra member significantly speeds up operations

   - Construct explit clean name for TBranch name if node is cached, equivalent
     to what is done in RooAbsReal. Needed because new constOptimizer can also
     cache RooAbsCategory objects


  o RooArgSet

   - Implement operator new() and operator delete() to implement memory pool scheme
     for RooArgSets. The goal of this implementation is to insure that two RooArgSet
     pointers are _never_ the same. This allows to RooNormSet cache manager to safely
     and quickly index integration and normalization configurations by evaluating
     the contents of a RooArgSet only the first time it sees it.


  o RooSimultaneous

   - Implement caching of partial integrals using new RooObjCacheManager

   - Following interface change in RooCategoryProxy ;


  o RooAbsData

   - Defined pure virtual methods optimizeReadingWithCache() and allClientsCached()


  o RooTreeData

   - Implement optimizeReadingWithCache() which determines given a p.d.f to be
     evaluated and a list of the nodes that are cached for it, which observables
     in the dataset are no longer required because they are either not an observable
     of the p.d.f, or they exclusively feed nodes that are cached. Reading of these
     observables is disabled through SetBranchStatus().
  
   - Move allClientsCached() utility function here from RooAbsReal.


  o RooCategoryProxy

   - Remove const char*() conversion operator in favor of a const char* label() method
     to remove possibly ambiguities in C++ math expressions involving category proxies.


  o LinkDef3.h

   - Add newly defined classes

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