Turtle and Observer Command
sdev-of-turtles `[list of commands]` Returns the standard deviation of the [list of commands] when evaluated across all the turtles. 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-turtles [speed] returns the standard devation of the speed of all the turtles. Related commands: sdev-of-list sdev-of-patches