Re: multiple array as hash value per key

The values in a hash can be any kind of scalar. To get the results that you want, each value would need to be a reference to an array, and each element in the referenced arrays would need to be another array reference.

%number = ( 23 => [ [ 'g1', 23, 24 ], [ 'g2', 34, 35 ] ],
            24 => [ [ 'g3', 45, 56 ], [ 'g4', 36, 48 ] ],
          );
$grp = $number{23}[0][0];
[download]

Note the I've corrected your hash-creating brackets from {} to ().

For more details see perldsc.

See the Copyright notice on my home node.

Perl training courses

Comment on Re: multiple array as hash value per key Download Code

Replies are listed 'Best First'.
Re^2: mutiple array as hash value per key by Anonymous Monk on Jul 02, 2009 at 06:44 UTC
in case i have new set of data (new array) referring to same key,is it possible to push the array value to the hash? eg : `new set is read from a file while ($line <>){ ($key,$value)=split(/,/,$line); #suppose #line have 23,['g8',23,45] push @{$numbers{23}},$value; }` [download] will this append the new array to existing key ?	[reply] [d/l]
Re^3: multiple array as hash value per key by davorg (Chancellor) on Jul 02, 2009 at 07:36 UTC
What you're looking for is probably more like: `while (<>) { chomp; my ($key, @values) = split /,/, $_; push @{$numbers{$key}}, [ @values ]; }` [download] When playing with complex data structures, perldsc and Data::Dumper are your friend. -- See the Copyright notice on my home node. Perl training courses	[reply] [d/l]