Hi Data is: 
FLINTSTONES=BARNEY, FRED, WILMA
JETSONS=MAX, TONY, WILMA
SIMPSONS=LISA, BARNEY, WILMA, HOMER
ALCATRAZ=ELIJAH, MAX, WILMA

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I know how to calculate the total number of terms. But, how do I calculate the total number of different terms? 
while(<DATA>) {
    chomp;
    my ($family, $people) = split /--/, $_, 2;                  #split
+ into two: family and memebers    my @members           = split /,\s*
+/, $people, -1;         #split family line into an array
    foreach my $member (@members) {                            #foreac
+h member within array
        push @{$people{$member}}, $family;                     #push i
+nto an array
        $families{$family}++;
my $total_families = scalar(keys %families);

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In reply to Calculating Total Different Array Terms On All Lines of Datafile by sdslrn123

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