Turtle and Observer Command
sdev-of-frogs `[list of commands]` Returns the standard deviation of the [list of commands] when evaluated across all the turtles of breed frogs. Note: If `[list of commands]` contains no numbers, an error occurs. If some of the `[list of commands]`, when evaluated, are not numbers, those values are ignored. Note: When a turtle calls the command, it is not included as part of the calculation. Examples: `sdev-of-frogs [speed]` returns the standard deviation of the speed of all the turtles of breed frogs. Related commands: sdev-of-list sdev-of-patches