John Doe wrote:
Andrej Kastrin am Montag, 30. Januar 2006 10.14:
Dear all,
I have bar separated file:
name1|345
name2|201
...
I store it into a hash;
while (<FILE_A>) {
chomp;
($name,$score) = split (/\|/,$_);
$hash{$name} = $score;
}
Let's assume the resulting hash is %scores.
Then I have second file:
ID - 001
NA - name1
NA - name2
ID - 002
NA - name2
NA - name4
...
I match all ID's and NA's:
while (<FILE_B>) {
chomp;
if (/^ID/ {
$ID = substr($_,5);
}
elseif (/^NA/) {
$NA = substr($_,5)
}
Now I have to do somethig like;
001 | 345+201
So, I want to read ID and NA fields from second file and then with each
ID print the sum of scores from first file.
Any suggestion. Which structure should I use to do that. Thank's in
advance.
Now you could parse FILE_B and use another twodimensional hash to accumulate
the scores by ID for each name. The loop could look like (untested):
my %sums;
my $id;
while (<FILE_B>) {
chomp;
next if (($id)=$_=~/^ID - (\d+)/);
next unless my ($na)=$_=~/^ID - (\w+)/;
$sums{$id}->{$na}+=$scores{$na};
}
foreach my $id (sort keys %sums) {
print "ID $id\n";
foreach my $name (sort keys %{$sums{$id}}) {
print "name: $name - scores: ",
$sums{$id}->{$name}, "\n";
}
}
(All handling of possible errors is missing here)
hth,
joe
I'm totally confused now and I have no more ideas... Thank's for your
reply Joe, but I didn't manage. Here is the more real example:
First file: (I modify it)
270|Germany|Hospitals|Poland
272|Germany|History
273|Physiology|Poland|Portraits
Second file:
Germany|100
History|200
Hospitals|50
Poland|50
Physiology|10
Portrait|10
Output file:
270|100|50|50|200 #270 is the key in table 1; 100, 50, 50 are values for
nouns from second file, 200 is the sum of them
272|100|200|300
273|10|50|10|70
I study this problem for 5 hours now, but I'm afraid I can't d it myself.
Cheers, Andrej
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