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Re: Creating Reports with hashes: Use of uninitialized value while adding integers

by toolic (Chancellor)
on Jan 26, 2012 at 15:23 UTC ( #950122=note: print w/ replies, xml ) Need Help??

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  1. or download this
                my $quant = $tree_collection{$years}{$trees}{$size} || "-"
    +;
    
  2. or download this
                my $quant = $tree_collection{$years}{$trees}{$size} || 0;
    
  3. or download this
    Argument "-" isn't numeric in addition (+)
    

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