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# scipy.stats.mstats.variation

`scipy.stats.mstats.``variation`(a, axis=0)

  Computes the coefficient of variation, the ratio of the biased standard deviation to the mean.

  Parameters : | a : array_like Input array. axis : int or None Axis along which to calculate the coefficient of variation.

  References

  [CRCProbStat2000] Section 2.2.20

  [CRCProbStat2000] | (1, 2) Zwillinger, D. and Kokoska, S. (2000). CRC Standard Probability and Statistics Tables and Formulae. Chapman & Hall: New York. 2000.

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