Hi Perl monks, sorry to ask a so simple question, but ihave been dodging with it for some hours.I have an XML file of the form,

<?xml version="1.0" encoding="UTF-8"?>
<testResults version="1.2">
<httpSample t="704" lt="704" ts="1306146504248" s="true" lb="HTTP Requ
+est" rc="200" rm="OK" tn="Thread Group 2-1" dt="text" by="411"/>
<httpSample t="525" lt="525" ts="1306146505234" s="true" lb="HTTP Requ
+est" rc="200" rm="OK" tn="Thread Group 2-2" dt="text" by="411"/>
<httpSample t="526" lt="526" ts="1306146506234" s="true" lb="HTTP Requ
+est" rc="200" rm="OK" tn="Thread Group 2-3" dt="text" by="411"/>

<httpSample t="586" lt="586" ts="1306146611316" s="true" lb="HTTP Requ
+est" rc="200" rm="OK" tn="Thread Group 2-1" dt="text" by="411"/>
<httpSample t="523" lt="523" ts="1306146612307" s="true" lb="HTTP Requ
+est" rc="200" rm="OK" tn="Thread Group 2-2" dt="text" by="411"/>
<httpSample t="507" lt="507" ts="1306146613306" s="true" lb="HTTP Requ
+est" rc="200" rm="OK" tn="Thread Group 2-3" dt="text" by="411"/>
<httpSample t="554" lt="554" ts="1306146614306" s="true" lb="HTTP Requ
+est" rc="200" rm="OK" tn="Thread Group 2-4" dt="text" by="411"/>
<httpSample t="535" lt="535" ts="1306146615306" s="true" lb="HTTP Requ
+est" rc="200" rm="OK" tn="Thread Group 2-5" dt="text" by="411"/>
</testResults>

[download]

now i need to find and display the maximum and minimum of lt value of each set( that is maximum and minimum values of lt from first three tags seperated by a newline and the next five tags inside a single program also similarly display the average of the two sets. I was able to fetch the lt values alone and display, but somewhere i have made some sort of mistake which devoids me from obtaining the desired output. kindly help.. for your information the code i used is as follows(to get lt value), 

use strict;
use warnings;
use XML::Simple;
use Data::Dumper;

# create object
my $xml_data = new XML::Simple (KeyAttr=>[]);

# read XML file
my $file_path='c:\catalog1';
my $data = $xml_data->XMLin($file_path);

# dereference hash reference
# access <httpSample> array
foreach my $e (@{$data->{httpSample}})
{
my @values = $e->{lt};
print "Lt_Value: ", @values, "\n";
print "\n";

}

[download]

In reply to find min, max and average by techtween

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.