Panel.ftypes Return the ftypes (indication of sparse/dense and dtype) in this object.

CategoricalIndex.base return the base object if the memory of the underlying data is shared

Series.equals(other) [source] Determines if two NDFrame objects contain the same elements. NaNs in the same location are considered equal.

GroupBy.aggregate(func, *args, **kwargs) [source]

CategoricalIndex.is_monotonic_increasing return if the index is monotonic increasing (only equal or increasing) values.

MultiIndex.transpose(*args, **kwargs) [source] return the transpose, which is by definition self

MultiIndex.size return the number of elements in the underlying data

DataFrame.as_blocks(copy=True) [source] Convert the frame to a dict of dtype -> Constructor Types that each has a homogeneous dtype. NOTE: the dtypes of the blocks WILL BE PRESERVED HERE (unlike in as_matrix) Parameters: copy : boolean, default True Returns: values : a dict of dtype -> Constructor Types

Series.dt.total_seconds(*args, **kwargs) [source] Total duration of each element expressed in seconds. New in version 0.17.0.

Panel4D.join(*args, **kwargs) [source]