DatetimeIndex.freqstr Return the frequency object as a string if its set, otherwise None

Resampler.indices dict {group name -> group indices}

Series.data return the data pointer of the underlying data

Panel4D.pop(item) [source] Return item and drop from frame. Raise KeyError if not found.

DatetimeIndex.map(f) [source]

Series.__iter__() [source] provide iteration over the values of the Series box values if necessary

Series.dt.month The month as January=1, December=12

TimedeltaIndex.shape return a tuple of the shape of the underlying data

DatetimeIndex.dayofyear The ordinal day of the year

Series.dt.is_quarter_end Logical indicating if last day of quarter (defined by frequency)