Data::Tabular::Group
This object is used by Data::Tabular to create `extra' columns on a table.
The subroutines in the `extra' section run under this package.
... extra => { 'bob' => sub { my $self = shift; # this is an Data::Tabular::Extra object } } ...
This object is used to supply tools to the Data::Tabular designer. It also helps to protect the data from that designer.
Method to access the data for a column. Given a list of column names this method returns a list of column data.
Method to sum a set of columns. Given a list of column names this method returns the sum of those columns. The type of the data returned is the type of the first column.