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.
- alpha
- Returns:
- ci
ndarray
, (k_constraints
, 2) The array has the lower and the upper limit of the confidence interval in the columns.
- ci