Dear Monks,

I would like to avoid overwriting elements in my array. Could you give me some advice ? The value are overwritten because I sort the data into several categories and some elements belong to the same catogory. Thanks

Here is my code (checked) 

#! usr/bin/perl -w
use strict;
use File::Copy;

my $summary_excel_file = "all_weeks_classified_per_hour.csv";
open my $OUTFILE, q{>}, $summary_excel_file;

print $OUTFILE "hour_position;before H-24;";

my @list = (1..24);
@list = reverse @list;
my $i;
foreach $i(@list){
    my $j = $i - 1;
    print $OUTFILE "between H-$i and H-$j;";
}
@list = (1..24);
foreach $i(@list){
    my $j = $i - 1;
    print $OUTFILE "between H+$j and H+$i;";
}
print $OUTFILE "\n";
print $OUTFILE "legend;";
my @Elements; 
my @TXT = glob("*.txt");
print STDOUT "@TXT\n";
foreach my $txt (@TXT){
    open my $TXT, q{<}, $txt or die;
        
    while(<$TXT>){
        my ($reg, $value, $anticipation) = (split /;/)[0,1,5];
        my $relative_position = -$anticipation;
    
        if ($relative_position <= -1440){
            $Elements[0] = $value;
        }
        
        foreach my $k (-24..23){
            ###   ] inf_limit ____________ pos in time ______________ 
+sup_limit____________> time
            my $inf_limit = 60*$k;
            my $sup_limit = 60*($k+1);
            my $l= $k + 25;
            
            if (($relative_position > $inf_limit) && ($relative_positi
+on <= $sup_limit)){
        
                $Elements[$l] = $anticipation;
            }
        }
    
        if ($relative_position  > 1440 ){
            $Elements[49] = $value;
        }    
    }
}        
my $nb = @Elements;
foreach my $i(0..$nb){
    if (defined $Elements[$i]){
        $Elements[$i] =~ s/\s+//; 
        print $OUTFILE "$Elements[$i];";
    }
    else{
        print $OUTFILE ";";
    }
}
close $OUTFILE;

[download]
and here are the "*.txt" files 
EGLLA22;0.1;380;01;22/10/2006;100

[download]
EGLLA22;0.1;380;01;22/10/2006;90

[download]
EGLLA22;0.1;380;01;22/10/2006;110

[download]

In reply to adding elements to already exisiting elements in an array by steph_bow

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