in reply to Find number of unique values in hash
And you will find the number of children with the same age as the values keyed by the age in the hash %ages:$ages{$_->{'age'}}++ foreach values %hoh;
{ 11 => 2, 12 => 2, 13 => 1 }
CountZero
A program should be light and agile, its subroutines connected like a string of pearls. The spirit and intent of the program should be retained throughout. There should be neither too little or too much, neither needless loops nor useless variables, neither lack of structure nor overwhelming rigidity." - The Tao of Programming, 4.1 - Geoffrey James
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