Panel4D.keys()

Panel4D.get_dtype_counts()

Panel.shape Return a tuple of axis dimensions

StataReader.value_labels()

SeriesGroupBy.nunique(dropna=True)

Expanding.cov(other=None, pairwise=None, ddof=1, **kwargs)

SeriesGroupBy.nsmallest(*args, **kwargs)

Panel4D.major_xs(key)

Resampler.sem(_method='sem', *args, **kwargs)

Panel4D.toLong(*args, **kwargs)