sum-of-frogs-with [condition]
[list of commands]
Reports the total value of [list of commands] when run
over the
turtles of breed frogs that satisfy condition .
If there are no frogs in which condition is
true, 0 is
returned. Note: This command can
also be executed by patches, for example within an ask-patches
statement.
Note: When a turtle calls the command, it is not included as part of
the calculation.
Examples:
sum-of-frogs-with [color = green] [age] returns the sum of
all
of the ages of the green frogs .
Related commands:
sum-of-frogs
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