 Usage:  subcs = prunetot (cs, lnum)  

 

 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. 

                         

  lnum                   integer >= 1: the tree subcs will have lnum leaves. 

                         The pruning method produces a sequence of subtrees from 

                         the original tree, the program prunetot selects from that 

                         sequence a tree which has a number of leaves greater or equal 

                         to lnum and then removes subtrees by minimizing sum of rquared 

                         residuals until a subtree with number of leaves exactly to 

                         lnum is formed. 

                         

 Output:



  subcs                  similar kind of object than cs, see cartsplit for the 

                         description of subcs. Number of leaves of subcs is lnum. 

                         

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

