Turtle and Observer Command

variance-of-patches `[list of commands]`

Returns the variance [list of commands] amongst all the patches.

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.

Examples:

variance-of-patches [food] returns the variance of the variable food for all the patches.

Related commands:
variance-of-list variance-of-turtles