col.xyz.summary

Adds an additonal row with a summary of the column. This summary can be either 'sum', 'avg', 'count', 'min', 'max' or just a label such as 'total:'

Class	Column
Property	col.xyz.summary
Formal specification	col.xyz.summary ::= sum \|avg \|count \|min \|max \| label label ::= string - the label allows to detail out what the calculated value represents
Required	no
Default	No (unless it is a label)
Version	1.0
Comment	A summary on a column of type string has no effect, unless it is a label
Example	`gd.columns=sandwich,price,number col.sandwich=Sandwich col.sandwich.type=string col.sandwich.editable=false col.sandwich.summary=Total: col.number=Count col.number.type=number col.number.summary=sum`
Reference	col.xyz.type = number col.xyz.type = integer