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

axis : int or None

References

[CRCProbStat2000] Section 2.2.20

[CRCProbStat2000]

(1, 2) Zwillinger, D. and Kokoska, S. (2000). CRC Standard Probablity and Statistics Tables and Formulae. Chapman & Hall: New York. 2000.