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my (%N,%A,%C,%G,%T);
while(<ENTREE>){
chomp($_);
my @ligne = split /\t/, $_;
my $sequence = $ligne[8];
my $e = 0;
my $n = 0;
while (1) {
$e = index($sequence, "A", $e);
last if ($e == -1);
$e++;
$A{$ligne[3]}{$e}++;
}
$e = 0;
$n = 0;
while (1) {
$e = index($sequence, "C", $e);
last if ($e == -1);
$e++;
$C{$ligne[3]}{$e}++;
}
$e = 0;
$n = 0;
while (1) {
$e = index($sequence, "G", $e);
last if ($e == -1);
$e++;
$G{$ligne[3]}{$e}++;
}
$e = 0;
$n = 0;
while (1) {
$e = index($sequence, "T", $e);
last if ($e == -1);
$e++;
$T{$ligne[3]}{$e}++;
}
$e = 0;
$n = 0;
while (1) {
$e = index($sequence, "N", $e);
last if ($e == -1);
$e++;
$N{$ligne[3]}{$e}++;
}
}
print "fichier $file ok\n";
close(ENTREE); |
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