Hi. I have a dataset of 100,000 lines of this sort (with emphasis on the first and last lines in this example): ENSP00000372533 ENSP00000372214 ENSP00000372533 ENSP00000362744 ENSP00000372525 ENSP00000368486 ENSP00000372521 ENSP00000355119 ENSP00000372521 ENSP00000362981 ENSP00000372214 ENSP00000372533 Every line such as: ENSP1 ENSP4 will have later somewhere in the set the same line equivalent but in opposite order: ENSP4 ENSP1 (which I consider as a redundancy). want to make this set a non-redundant one. Could you please suggest a way of "cleaning" that dataset- getting rid of lines that already exist, but in opposite order? I couldn't think how to do it in a way which will not be immensly time consuming and clumsy. Thanks a lot for any idea!

In reply to Creating a non-redundant set by uvnew

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.