comment on

You've confused their first and last names. The data is <lname fname score> but you assign those to $fname, $lname, $score

my %hash = ();

while( <DATA> ) {
   my( $lname, $fname, $score ) = split;
   $hash{$lname}{$fname} = $score;
}

#just last names
print join "\n", keys %hash;

print "\n---\n";

#names and scores:
for my $lname ( keys %hash ) {
    for my $fname ( keys %{ $hash{$lname} } ) {
        printf "$lname, $fname:  $hash{$lname}{$fname}\n"
    }
}

__DATA__
Lateur Bart 97
Pierce Jerrad 96
Unknown planetscape 101
Miller Katie 86
[download]

Output:

Pierce
Lateur
Miller
Unknown
---
Pierce, Jerrad:  96
Lateur, Bart:  97
Miller, Katie:  86
Unknown, planetscape:  101
[download]

In reply to Re: Deciphering the output from Data::Dumper by FunkyMonk
in thread Deciphering the output from Data::Dumper by DigitalKitty

Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!

Titles consisting of a single word are discouraged, and in most cases are disallowed outright.

Read Where should I post X? if you're not absolutely sure you're posting in the right place.

Please read these before you post! —

Posts may use any of the Perl Monks Approved HTML tags:

a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr

You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)

	For:		Use:
	&		`&`
	<		`<`
	>		`>`
	[		`[`
	]		`]`

Link using PerlMonks shortcuts! What shortcuts can I use for linking?

See Writeup Formatting Tips and other pages linked from there for more info.


There's more than one way to do things
	PerlMonks