A few modules that are likely to do the job well: Other than that, some perlish syntax correction (NO logic correction) to your code: 
while ( defined (my $scalar=<$TEST>) ) # This will accommodate the cas
+e when $seclar is Zero
{
  chomp($scalar);
  my ( $a,  $b ) =firstidx { $_ == $scalar } @arrayPFA; # $a and $b ar
+e NOT good names - they have special meanings in perl
  if(!defined $a)
  {
    $data=$arrayPFA[$b];
  }
  elsif(if any { ! defined($scalar) } @arrayT;) # No idea what is inte
+nded here...
  {
    $data=1.0;
  }
  else
  {
    $data=0.0;
  };
};

[download]

        "You're only given one little spark of madness. You mustn't lose it."         - Robin Williams

In reply to Re: intersection of scalar with 1D array and 2D array Matlab=>Perl by NetWallah
in thread intersection of scalar with 1D array and 2D array Matlab=>Perl by f77coder

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.