Dear monks, I have implemented the following code with using a loop. I tried avoiding the loop by where, which functions but did not have any luck.
The code is as follows: 
$dec = pdl [[1,1,2,2,2],[10,15,13,11,4]];
my $min = $dec->(:,0) ->minimum;
my $max = $dec->(:,0) ->maximum;
print $max,"fwe\n";
$v = zeroes(2,2);
$v(0,0) .= $min;
$v(0,1) .= $max;

for (my  $i =$min; $i< 3; $i++)
{
    $v(1,$i-1) .= $dec->(:,1)-> index(which $dec->(:,0) eq $i)->maximu
+m;
}

[download]
I am hoping via a single function, threading will be much faster. Seeking wisdom, any help appreciated

In reply to PDL threading where/which instead of loop by roark

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.