in reply to Re^2: Searching in an array of arrays
in thread Searching in an array of arrays

I don't understand your first problem. Testing my code here with the @data defined as :
@data = ( [ '1-1-2004', 15.0 ],
     [ '2-1-2004', 15.5 ],
     [ '3-1-2004', 16.5 ],
     [ '4-1-2004', 17.0 ],
     [ '5-1-2004', 17.5 ],
     [ '6-1-2004', 18.0 ],
     [ '7-1-2004', 18.5 ],
     [ '8-1-2004', 19.0 ],
     [ '9-1-2004', 19.5 ],
     ...
      [ '16-1-2004', 28.8 ]);

[download]
does work here. Could you provide code ? Your problem seems to be XML related.

As for the range, you're right, there is problem, that is corrected in the new version, by converting temperature to an integer :
$day->[1] = int $day->[1];

[download]

$last_range is used to remember the current range we are in. If that range remains unchanged 5 times, we print the range information.

$first_day is used to remember the first day we saw the temperature of the current range;

HTH

--
zejames

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Re^4: Searching in an array of arrays
by perl_seeker (Scribe) on Nov 04, 2004 at 10:20 UTC
    Hi,this is (part of)the XML file I am parsing: 
    - <AnnualWeatherRecord>
- <DailyWeatherRecord>
  <date>1-1-2004</date> 
- <temperature>
  <maxdrybulb unit="degrees-centigrade" number="15.0" /> 
  <mindrybulb unit="degrees-centigrade" number="15.0" /> 
  <maxwetbulb unit="degrees-centigrade" number="33.53" /> 
  <minwetbulb unit="degrees-centigrade" number="30.53" /> 
  </temperature>
  <totalrainfall unit="mm" number="0.5" /> 
  </DailyWeatherRecord>
- <DailyWeatherRecord>
  <date>2-1-2004</date> 
- <temperature>
  <maxdrybulb unit="degrees-centigrade" number="15.5" /> 
  <mindrybulb unit="degrees-centigrade" number="15.5" /> 
  <maxwetbulb unit="degrees-centigrade" number="23.14" /> 
  <minwetbulb unit="degrees-centigrade" number="20.14" /> 
  </temperature>
  <totalrainfall unit="mm" number="0" /> 
  </DailyWeatherRecord>
- <DailyWeatherRecord>
  <date>3-1-2004</date> 
- <temperature>
  <maxdrybulb unit="degrees-centigrade" number="16.5" /> 
  <mindrybulb unit="degrees-centigrade" number="16.5" /> 
  <maxwetbulb unit="degrees-centigrade" number="33.53" /> 
  <minwetbulb unit="degrees-centigrade" number="30.53" /> 
  </temperature>
  <totalrainfall unit="mm" number="0.5" /> 
  </DailyWeatherRecord>
- <DailyWeatherRecord>
  <date>15-1-2004</date> 
- <temperature>
  <maxdrybulb unit="degrees-centigrade" number="28.0" /> 
  <mindrybulb unit="degrees-centigrade" number="28.0" /> 
  <maxwetbulb unit="degrees-centigrade" number="33.53" /> 
  <minwetbulb unit="degrees-centigrade" number="30.53" /> 
  </temperature>
  <totalrainfall unit="mm" number="0.5" /> 
  </DailyWeatherRecord>
- <DailyWeatherRecord>
  <date>16-1-2004</date> 
- <temperature>
  <maxdrybulb unit="degrees-centigrade" number="28.8" /> 
  <mindrybulb unit="degrees-centigrade" number="28.8" /> 
  <maxwetbulb unit="degrees-centigrade" number="33.53" /> 
  <minwetbulb unit="degrees-centigrade" number="30.53" /> 
  </temperature>
  <totalrainfall unit="mm" number="0" /> 
  </DailyWeatherRecord>
- <DailyWeatherRecord>
  <date>1-2-2004</date> 
- <temperature>
  <maxdrybulb unit="degrees-centigrade" number="44.25" /> 
  <mindrybulb unit="degrees-centigrade" number="39.25" /> 
  <maxwetbulb unit="degrees-centigrade" number="33.53" /> 
  <minwetbulb unit="degrees-centigrade" number="30.53" /> 
  </temperature>
  <totalrainfall unit="mm" number="0.5" /> 
  </DailyWeatherRecord>
- <DailyWeatherRecord>
  <date>2-2-2004</date> 
- <temperature>
  <maxdrybulb unit="degrees-centigrade" number="50.25" /> 
  <mindrybulb unit="degrees-centigrade" number="49.25" /> 
  <maxwetbulb unit="degrees-centigrade" number="23.14" /> 
  <minwetbulb unit="degrees-centigrade" number="20.14" /> 
  </temperature>
  <totalrainfall unit="mm" number="0" /> 
  </DailyWeatherRecord>
- <MonthlyWeatherRecord>
  <date>1-2004</date> 
- <temperature>
  <maxdrybulb unit="degrees-centigrade" number="33.95" /> 
  <mindrybulb unit="degrees-centigrade" number="23.20" /> 
  <avgdrybulb unit="degrees-centigrade" number="33.95" /> 
  </temperature>
  <totalrainfall unit="mm" number="0.5" /> 
  </MonthlyWeatherRecord>
- <MonthlyWeatherRecord>
  <date>2-2004</date> 
- <temperature>
  <maxdrybulb unit="degrees-centigrade" number="50.25" /> 
  <mindrybulb unit="degrees-centigrade" number="39.25" /> 
  <avgdrybulb unit="degrees-centigrade" number="44.25" /> 
  </temperature>
  <totalrainfall unit="mm" number="0.5" /> 
  </MonthlyWeatherRecord>
  </AnnualWeatherRecord>

    [download]
    And this is the code I'm using to parse it and build @data
    Subroutine 
    sub MonthlyMaxTempSpellMessage{

    my $month = shift;            
    #print "\n$month";

    $month = "-$month-";          
    #print "\n$month";            

    my $xp = XML::XPath->new(filename 
    =>'weather_records.xml'); 
  
    my @data=();
   
    my $nodes = $xp->findnodes("//DailyWeatherRecord
    [contains(date,'$month')]"); 

    foreach my $node($nodes->get_nodelist){
    
               
     push @data, [$xp->findvalue(".//date",$node),$xp-
     >findvalue(".//maxdrybulb /\@number",$node)];
               
          
    }

  for my $aref ( @data ) {
     print "\t [ @$aref ],\n";
   }

    [download]
    Main 
    my $monthmts=1;
MonthlyMaxTempSpellMessage($monthmts);

    [download]
    Anything wrong here? What do I need to change in your code to build the required array of arrays?
    Thanks
    perl_seeker:)
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