Hi,

I want to read in data from a file in the following format:

12/10/2003 13:20,1024 12/10/2003 13:50,1024 12/10/2003 14:00,1023 12/10/2003 14:20,1023 12/10/2003 14:50,1023 12/10/2003 15:00,1023 12/10/2003 15:20,1023 12/10/2003 15:50,1023 12/10/2003 16:00,1022.5 12/10/2003 16:20,1023 12/10/2003 16:50,1022
This represents barometric pressure readings at a specific time.

I'd then like to look up these values to find out what the most recently recorded pressure value was at a given time, e.g. what is the pressure value at 16:09? (1022.5).

What's the best data structure to use to store this data?

Thanks,

R.

--

Robin Bowes | http://robinbowes.com


In reply to Data structure advice by robinbowes

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.