For instance, my code is : 

my $infile = $ARGV[0];
open (IFILE, "<", $infile) || die "Cannot open : $!\n";
## read the input file
my @data;
my $COLUMNTOPARSE;
my $local;
while (<IFILE>) {
        chomp;
        my @local = split ('\t',$_);
        $COLUMNTOPARSE = $local[$ARGV[1]];
        push @data; $COLUMNTOPARSE;
}
close IFILE;
my $count = @data;

[download]

Now I wanted to get a generalization of all the indices of 125 elements stored in the $COLUMNTOPARSE in order to calculate variance of those elements 

my $variance;
my $var;
foreach my $data[$index] (@data) {
            $var = 1/($count-1);
            $variance = $var*(($data[$index]-$Average)**2);
}
print "$variance\n";

[download]

But this $data$index way does not work.How should I proceed? Thanks..

In reply to Re^2: How to store the indexes of a array by anonym
in thread How to store the indexes of a array by anonym

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