statsmodels.stats.diagnostic.anderson_statistic¶
-
statsmodels.stats.diagnostic.
anderson_statistic
(x, dist='norm', fit=True, params=(), axis=0)[source]¶ Calculate the Anderson-Darling a2 statistic.
- Parameters
- xarray_like
The data to test.
- dist{‘norm’,
callable
} The assumed distribution under the null of test statistic.
- fitbool
If True, then the distribution parameters are estimated. Currently only for 1d data x, except in case dist=’norm’.
- params
tuple
The optional distribution parameters if fit is False.
- axis
int
If dist is ‘norm’ or fit is False, then data can be an n-dimensional and axis specifies the axis of a variable.
- Returns