
List help needed
Posted:
Oct 25, 1996 10:21 PM


Hi,
I need a little help with lists. What I would like to do is the following:
From a list of length N, construct all possible lists of length n<N from N by combining adjacent elements of the original list into sub lists. This might become clearer with an example.
Given {a,b,c,d,e} of length 5, ALL possible length 4 lists subject to the conditions above are:
{{a,b},c,d,e}, {a,{b,c},d,e}, {a,b,{c,d},e} and {a,b,c,{d,e}}
two of the possible length 3 lists are
{a,{b,c,d},e} and {{a,b},c,{d,e}}
I hope you get the picture.
In the "real" problem, N would be around 20 and n would be around 10.
Thanks in advance
John jrowney@arco.com

