 Usage:  ln = leafnum(cs, node)  

 

 Input:



  cs                     list of vectors: data structure which represents a binary tree 

                         and is produced by cartsplit procedure, contains vectors 

                         cs.val, cs.vec, cs.mean, cs.ssr, cs.nelem. 

                         See cartsplit for the description of cs. 

                         

  node                   integer >= 1: gives the index of the root node of 

                         the subtree whose number of leaves will be calculated. 

                         If node=1, the number of leaves in the hole tree is 

                         calculated, if node=2, the number of leaves in the 

                         left subtree is calculated, if node=3, the number 

                         of leaves in the left subtree of the left subtree 

                         (if it exists) is calculated. See cartsplit for 

                         the explanation how the tree is represented as a 

                         vector. 

                         

 Output:



  ln                     integer >= 1: number of leaves in the specified 

                         subtree. 

                         

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(C) MD*TECH Method and Data Technologies, 21.9.2000

