Source code for simplestatistics.statistics.coefficient_of_variation

from .standard_deviation import standard_deviation
from .mean import mean

[docs]def coefficient_of_variation(data, sample = True): """ The `coefficient of variation`_ is the ratio of the standard deviation to the mean. .. _`coefficient of variation`: https://en.wikipedia.org/wiki/Coefficient_of_variation Args: data: A list of numerical objects. sample: A boolean value. If True, calculates coefficient of variation for sample. If False, calculates coefficient of variation for population. Returns: A float object. Examples: >>> coefficient_of_variation([1, 2, 3]) 0.5 >>> coefficient_of_variation([1, 2, 3], False) 0.408248290463863 >>> coefficient_of_variation([1, 2, 3, 4]) 0.5163977794943222 >>> coefficient_of_variation([-1, 0, 1, 2, 3, 4]) 1.247219128924647 """ return standard_deviation(data, sample) / mean(data)