statsmodels.stats.oneway._power_equivalence_oneway_emp¶
- statsmodels.stats.oneway._power_equivalence_oneway_emp(f_stat, n_groups, nobs, eps, df, alpha=0.05)[source]¶
Empirical power of oneway equivalence test
This only returns post-hoc, empirical power.
Warning: eps is currently effect size margin as defined as in Wellek, and not the signal to noise ratio (Cohen’s f family).
- Parameters:
- f_stat
float
F-statistic from oneway anova, used to compute empirical effect size
- n_groups
int
Number of groups in oneway comparison.
- nobs
ndarray
Array of number of observations in groups.
- eps
float
Equivalence margin in terms of effect size given by Wellek’s psi.
- df
tuple
Degrees of freedom for F distribution.
- alpha
float
in
(0, 1) Significance level for the hypothesis test.
- f_stat
- Returns:
- pow
float
Ex-post, post-hoc or empirical power at f-statistic of the equivalence test.
- pow