DataFrame.get_dtype_counts()

DataFrame.diff(periods=1, axis=0)

DataFrame.to_json(path_or_buf=None, orient=None, date_format='epoch', double_precision=10, force_ascii=True, date_unit='ms', default_handler=None

DataFrame.nlargest(n, columns, keep='first')

DataFrame.round(decimals=0, *args, **kwargs)

DataFrame.as_blocks(copy=True)

DataFrame.size number of elements in the NDFrame

DataFrame.merge(right, how='inner', on=None, left_on=None, right_on=None, left_index=False, right_index=False, sort=False, suffixes=('_x',

DataFrame.plot(x=None, y=None, kind='line', ax=None, subplots=False, sharex=None, sharey=False, layout=None, figsize=None, use_index=True, title=None

DataFrame.iterrows()