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sum(group, value)

Operator Type: 

Operator Scope of Action: 

Operator Purpose: 

Operator First Added: 

Operator Altered: 

 Function   [other Function type actions]

 Group   [operators of similar scope]

 Mathematical   [other Mathematical operators]




This computes the arithmetic sum of every value in a group. See sum_if() for a related conditional operator.

group may be any of {children,descendants,siblings,ancestors,all}.

In addition, group may be argument that designates a particular (single) note other than this.

value can be any expression, but is typically an attribute value.

For example,


constructs the current word count of the children of the note.

A Tinderbox Reference File : Actions & Rules : Operators : Full Operator List : sum(group, value)