[S] Vector generation

[Ian Clough <cloughi@email.uc.edu>]

I use S-Plus 2000 in a Windows NT environment. I am interested  in efficiently 
generating a sequence of vectors from a given matrix. 
Specifically given, for example, the matrix

                                              1 2 3 4 5 6 7               
                                              2 3 4 5 6 7 8
                                              3 4 5 6 7 8 9

I wish to efficiently generate the sequence of column vectors 

1   1   1        1   1   1   1       1   1       1       1  2   2               
                6   7
2   2   2  ...   2   3   3   3  ...  3   4  ...  4  ...  8  3   3   .. etc ..   
  up to    8   8
3   4   5        9   4   5   6       9   5       9       9  4   5               
                9   9

Any ideas would be much appreciated,
                                                                  Ian    
(cloughi@email.uc.edu)    


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