You could populate it first like so: 

 
my %G1_Hash = ( 
    'H0'      => 1, 
    'KO'      => 1, 
     ...
);

[download]

-----------------------------------
Frank Wiles <frank@wiles.org>
http://frank.wiles.org

In reply to Re: Efficient Grouping by ides
in thread Efficient Grouping by meetraz

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