construct a CompareMeans object from data
data1, data2 : array-like, 1-D or 2-D
compared datasets
weights1, weights2 : None or 1-D ndarray
weights for each observation of data1 and data2 respectively, with same length as zero axis of corresponding dataset.
ddof1, ddof2 : int
default ddof1=0, ddof2=0, degrees of freedom for data1, data2 respectively.
A CompareMeans instance. :
statsmodels.stats.weightstats.CompareMeans.dof_satt
statsmodels.stats.weightstats.CompareMeans.std_meandiff_pooledvar
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