What is the best way to create a list of unique strings that will also eliminate strings that are exact substrings of another string? For example, if i have AGCT, AGGT, GG, and AGCT, I only want to keep AGCT and AGGT. The direct string comparison approaches I have been reading about would, I think, consider AGGT and GG different, for example if I just create a hash using the strings as keys or use cmp.

I see I can choose one string and for each through the others comparing each pair using match, but I was wondering if there was a more efficient way as I have hundreds of sets of strings, each containing about 100,000 strings, and each string is about 300 characters long.

Thank you.

In reply to list of unique strings, also eliminating matching substrings by lindsay_grey

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