Counting/Matching Terms In Arrays contained within a Hash

sdslrn123 has asked for the wisdom of the Perl Monks concerning the following question:

Sorry another update: Is there a way to calculate the total number of terms altogether. I want this information to convey the information as a percentage.

print "$member can be found " . scalar(@{$family{$member}}) / ? . ": "
[download]

#!/usr/bin/perl
use Data::Dumper;          # only for teaching purpose
$Data::Dumper::Indent = 1; # dito :-)

while(<DATA>) {
    chop;
    my($familyname,$memberstring) = split /\s--\s/,$_;
    my @members = split /, /,$memberstring;
    # tell each member that it's got a new family
    foreach my $member(@members) {
        push(@{$family{$member}},$familyname);
    } 
} 
print Dumper(\%family); # show the data structure in %family
# now output a list of members with their families
foreach my $member(sort keys %family) {
    print "$member can be found " . scalar(@{$family{$member}}) . ": "
        . join(" ", @{$family{$member}}) . "\n";
}
[download]

Thank You. Genius. Some heavy PERLDOC reading tonight!! Updated. Sorry about confusion with variable names. Basically my data is subject to change but will follow a format as follows where I will have a unique "Family Name" followed by "--" followed by various "family members". The contents of the data are unknown to me apart from the format. Data is a text file. Could consist of as follows:

FLINTSTONES=BARNEY, FRED, WILMA
JETSONS=MAX, TONY, WILMA
SIMPSONS=LISA, BARNEY, WILMA, HOMER
ALCATRAZ=ELIJAH, MAX, WILMA
[download]

I know I can grab this into an array called @Dopli. And split each line $unix at "--" into an array @trainer Is there a way of pushing each array into a hash using $trainer[0] and $trainer1.

sub nice_list {
   return ''    if @_ == 0;
   return shift if @_ == 1;

   my $last = pop;
   return join(', ', @_) . " and $last";
}

my $line;
my @data;
my @family;
my @members;


foreach $line (@data){
@family = split ('=', $line);
@members = split (',', $family[1]);
my %is_eaten_by = (
   $family[0]  => [ (@members) ],
  );

foreach my $fruit (keys %is_eaten_by) {
   my $eaters = $is_eaten_by{$fruit};
   my $num_eaters = @$eaters;
   print("$num_eaters  ${fruit}: ",
         (@$eaters), "\n");
}
}
[download]

Ultimately I am looking to print:

BARNEY can be found 2: FLINTSTONES SIMPSONS
FRED can be found 1: FLINTSTONES
WILMA can be found 4: FLINTSTONES JETSONS SIMPSONS ALCATRAZ
MAX can be found 2: JETSONS ALCATRAZ 
and so forth...
[download]

At the moment am just getting what seems the number of terms of each array related to the key. Thanks for any kind of help or advice.

Comment on Counting/Matching Terms In Arrays contained within a Hash Select or Download Code

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Re: Counting/Matching Terms In Arrays contained within a Hash by shmem (Chancellor) on Jun 21, 2006 at 14:29 UTC
Here's something to study. #!/usr/bin/perl use Data::Dumper; # only for teaching purpose $Data::Dumper::Indent = 1; # dito :-) while(<DATA>) { chop; my($familyname,$memberstring) = split /\s--\s/,$_; my @members = split /, /,$memberstring; # tell each member that it's got a new family foreach my $member(@members) { push(@{$family{$member}},$familyname); } } print Dumper(\%family); # show the data structure in %family # now output a list of members with their families foreach my $member(sort keys %family) { print "$member can be found " . scalar(@{$family{$member}}) . ": " . join(" ", @{$family{$member}}) . "\n"; } __DATA__ FLINTSTONES -- BARNEY, FRED, WILMA JETSONS -- MAX, TONY, WILMA SIMPSONS -- LISA, BARNEY, WILMA, HOMER ALCATRAZ -- ELIJAH, MAX, WILMA [download] Download that code an run it; it will produce the following output: $VAR1 = { 'ELIJAH' => [ 'ALCATRAZ' ], 'FRED' => [ 'FLINTSTONES' ], 'HOMER' => [ 'SIMPSONS' ], 'BARNEY' => [ 'FLINTSTONES', 'SIMPSONS' ], 'MAX' => [ 'JETSONS', 'ALCATRAZ' ], 'LISA' => [ 'SIMPSONS' ], 'WILMA' => [ 'FLINTSTONES', 'JETSONS', 'SIMPSONS', 'ALCATRAZ' ], 'TONY' => [ 'JETSONS' ] }; BARNEY can be found 2: FLINTSTONES SIMPSONS ELIJAH can be found 1: ALCATRAZ FRED can be found 1: FLINTSTONES HOMER can be found 1: SIMPSONS LISA can be found 1: SIMPSONS MAX can be found 2: JETSONS ALCATRAZ TONY can be found 1: JETSONS WILMA can be found 4: FLINTSTONES JETSONS SIMPSONS ALCATRAZ [download] If you need more advice or explanation, fell free to ask. But before that - read the manual pages perldata, perlref and the one for Data::Dumper _($_=" "x(1<<5)."?\n".q·/)Oo. G°\ / /\_¯/(q / ---------------------------- \__(m.====·.(_("always off the crowd"))."· ");sub _{s./.($e="'Itrs `mnsgdq Gdbj O`qkdq")=~y/"-y/#-z/;$e.e && print}	[reply] [d/l] [select]
Re: Counting/Matching Terms In Arrays contained within a Hash by Jaap (Curate) on Jun 21, 2006 at 14:08 UTC
Is this a typo? `@trainer = split ('=', $unix);` [download] One would expect '--'. Secondly, if you use clearer variable names, it's much, MUCH easier for us to read and help you.	[reply] [d/l]