def standard_deviation(X, condition=None, **kwargs):
    return sqrt(variance(X, condition, **kwargs))
aFunc in dict lookup in a loop
dataset/ETHPy150Open sympy/sympy/sympy/stats/rv_interface.py/standard_deviation--crossover with--dataset/ETHPy150Open skyostil/tracy/src/generator/Cheetah/Tests/NameMapper.py/VFN.test10