method number.standard_deviation
Contract
Return typedouble
No input parameters.
Parameter kindDefault valueType
Other unkeyed argumentsopt
Other keyed argumentsopt
Water Contract
<method number.standard_deviation
  _other_keyed=opt=wob=ekind.code="_add_to_environment"
  _other_unkeyed=opt=wob=ekind.code="_body"
  _return_type=number.double/>

standard_deviation is a measure of the spread of a set of numbers. standard_deviation is equal to the square root of the variance of the same set of numbers (with perhaps a small floating point rounding error). You can pass in numbers as _other_unkeyed or as _other_keyed as well as pass in one number as the subject. 
number.<standard_deviation 1 2 3/>
0.8164965809277263
number.<standard_deviation _other_keyed=<thing x=1 y=2 z=3/>/>
0.8164965809277263
number.<standard_deviation 1 2 3/>.<power 2/>.<minus
number.<variance 1 2 3/>/>.<less 0.00001/>
true

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