probs0 : array_like
probabilities or cell frequencies under the Null hypothesis
probs1 : array_like
probabilities or cell frequencies under the Alternative hypothesis
probs0 and probs1 need to have the same length in the axis dimension.
and broadcast in the other dimensions
Both probs0 and probs1 are normalized to add to one (in the axis
dimension).
correction : None or tuple (nobs, df)
If None, then the effect size is the chisquare statistic divide by
the number of observations.
If the correction is a tuple (nobs, df), then the effectsize is
corrected to have less bias and a smaller variance. However, the
correction can make the effectsize negative. In that case, the
effectsize is set to zero.
Pederson and Johnson (1990) as referenced in McLaren et all. (1994)
cohen : bool
If True, then the square root is returned as in the definition of the
effect size by Cohen (1977), If False, then the original effect size
is returned.
axis : int
If the probability arrays broadcast to more than 1 dimension, then
this is the axis over which the sums are taken.
