statsmodels.emplike.descriptive.DescStatUV.ci_skew¶

DescStatUV.ci_skew(sig=0.05, upper_bound=None, lower_bound=None)[source]¶

Returns the confidence interval for skewness.

Parameters:¶

sigfloat

The significance level. Default is .05

upper_boundfloat

Maximum value of skewness the upper limit can be. Default is .99 confidence limit assuming normality.

lower_boundfloat

Minimum value of skewness the lower limit can be. Default is .99 confidence level assuming normality.

Returns:¶

Intervaltuple

Confidence interval for the skewness

Notes

If function returns f(a) and f(b) must have different signs, consider expanding lower and upper bounds