Which of the following method is used for transforming a SparseSeries indexed by a MultiIndex to a scipy.sparse.coo_matrix
Which of the following method produces a data ranking with ties being assigned the mean of the ranks for the group
Which of the following package is used for reading excel data
Which of the following takes a dict of dicts or a dict of array-like sequences and returns a DataFrame
Which of the following can be used to view all the tables in memory