Beefy Boxes and Bandwidth Generously Provided by pair Networks
Think about Loose Coupling
 
PerlMonks  

Comment on

( #3333=superdoc: print w/ replies, xml ) Need Help??

Hmm. I looked into this (god knows why, im not a math type at all, nor do I use random numbers for anything serious). My code is as follows:

my $count=1; my %hash; my $last=-1; for (1..1000000) { my $num=int rand 10; if ($num == $last) { $count++; } else { $hash{$last}{$count}++ unless $last<0; $count=1; } $last=$num; } use Data::BFDump; Dump(\%hash)->Out();

Ive run it a few times for various large number of iterations and it does seem like sequences of 0 are just slightly more common than other numbers. I dont have the stats skills currently and I can't be bothered doing the research to find out how to find out how much the deviation is, or if its signifigant. Update: Nah. I did a few more runs, I now dont think there appears to be much difference.

Im hoping tilly or one of the other math types comes in and explains all this for us. :-)

$HASH1 = { 0 => { 1 => 809217, 2 => 80661, 3 => 8105, 4 => 793, 5 => 78, 6 => 14 }, 1 => { 1 => 809964, 2 => 81041, 3 => 7980, 4 => 824, 5 => 90, 6 => 7, 7 => 1 }, 2 => { 1 => 809678, 2 => 81151, 3 => 8134, 4 => 837, 5 => 74, 6 => 4, 7 => 2 }, 3 => { 1 => 810420, 2 => 80495, 3 => 8204, 4 => 809, 5 => 96, 6 => 4, 7 => 2 }, 4 => { 1 => 809280, 2 => 81142, 3 => 8068, 4 => 795, 5 => 72, 6 => 12, 7 => 1 }, 5 => { 1 => 808510, 2 => 81230, 3 => 8157, 4 => 841, 5 => 83, 6 => 9, 7 => 1 }, 6 => { 1 => 811176, 2 => 81502, 3 => 8166, 4 => 817, 5 => 68, 6 => 9 }, 7 => { 1 => 810293, 2 => 80902, 3 => 8071, 4 => 788, 5 => 78, 6 => 11, 7 => 1 }, 8 => { 1 => 809579, 2 => 81208, 3 => 8061, 4 => 837, 5 => 81, 6 => 9, 7 => 1 }, 9 => { 1 => 809785, 2 => 81492, 3 => 8071, 4 => 857, 5 => 83, 6 => 9 } };


---
demerphq

    First they ignore you, then they laugh at you, then they fight you, then you win.
    -- Gandhi



In reply to Re: Random numbers Perl ok! (I think) by demerphq
in thread Random numbers Perl ok! (I think) by liz

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!
  • 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, 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, 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.
  • Log In?
    Username:
    Password:

    What's my password?
    Create A New User
    Chatterbox?
    and the web crawler heard nothing...

    How do I use this? | Other CB clients
    Other Users?
    Others taking refuge in the Monastery: (5)
    As of 2015-07-30 00:21 GMT
    Sections?
    Information?
    Find Nodes?
    Leftovers?
      Voting Booth?

      The top three priorities of my open tasks are (in descending order of likelihood to be worked on) ...









      Results (269 votes), past polls