TreeSet-class: Class TreeSet
Description
This is the virtual base class for all other classes providing the link to 
a ROOT file and the ROOT trees contained therein.
Objects from the Class
A virtual Class: No objects may be created from it.Slots
    setname:- Object of class 
"character" representing the name to the
     ROOT file subdirectory where the ROOT trees are stored,
     usually one of DataTreeSet, PreprocesSet, CallTreeSet.  settype:- Object of class 
"character" describing the type of treeset
     stored in setname, usually one of scheme, rawdata, preprocess.  rootfile:- Object of class 
"character" representing the name 
     of the ROOT file, including full path.  filedir:- Object of class 
"character" describing the full path to
     the system directory where rootfile is stored.  numtrees:- Object of class 
"numeric" representing the number of 
     ROOT trees stored in subdirectoy setname.  treenames:- Object of class 
"list" representing the names of the 
     ROOT trees stored in subdirectoy setname.  
 Methods
    - export
 signature(object = "TreeSet"): exports ROOT trees 
     as text file, see export-methods.  - fileDir
 signature(object = "TreeSet"): extracts slot filedir.  - fileDir<-
 signature(object = "TreeSet", value = "character"): replaces slot filedir.  - root.browser
 signature(object = "TreeSet"): opens the ROOT file browser.  - rootFile
 signature(object = "TreeSet"): extracts slot rootfile.  - rootFile<-
 signature(object = "TreeSet", value = "character"): replaces slot rootfile.  - setName
 signature(object = "TreeSet"): extracts slot setname.  - setName<-
 signature(object = "TreeSet", value = "character"): replaces slot setname.  - setType
 signature(object = "TreeSet"): extracts slot settype.  - setType<-
 signature(object = "TreeSet", value = "character"): replaces slot settype.  - treeInfo
 signature(object = "TreeSet"): extracts UserInfo from ROOT trees.  - treeNames
 signature(object = "TreeSet"): extracts slot treenames.  
 See Also
derived classes SchemeTreeSet, DataTreeSet,
 ExprTreeSet, CallTreeSet.