Given the following dataset in an EXCEL file: Here are three columns: 

A1 10 20
A1 11 22
B1 08 09
A1 03 10
B1 15 32
B1 22 33
C1 24 34
C1 0  5
....

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I am trying to group by first column. Thus, I am trying to get the following: 

A1 24 52
B1 45 74
C1 24 39

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Finally, I want to achieve this result because I want to put this in a hash with the first column being the key. Something like this: 

my %hash
$hash{$col1} = [$col2,$col3];

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More importantly, how do you group things in perl by any one column? Thanks!

In reply to Grouping By A Column by rocky13

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