statsmodels.stats.contrast.ContrastResults.conf_int¶
-
ContrastResults.
conf_int
(alpha=0.05)[source]¶ Returns the confidence interval of the value, effect of the constraint.
This is currently only available for t and z tests.
- Parameters
alpha : float, optional
The significance level for the confidence interval. ie., The default alpha = .05 returns a 95% confidence interval.
- Returns
ci : ndarray, (k_constraints, 2)
The array has the lower and the upper limit of the confidence interval in the columns.