Which of the following method is used for transforming a SparseSeries indexed by a MultiIndex to a scipy.sparse.coo_matrix?(a) SparseSeries.to_coo()(b) Series.to_coo()(c) SparseSeries.to_cooser()(d) None of the mentionedThe question was posed to me in class test.This intriguing question comes from Pandas topic in section Data Analysis with Python of Data Science

Which of the following method is used for transforming a SparseSeries

1.	Which of the following method is used for transforming a SparseSeries indexed by a MultiIndex to a scipy.sparse.coo_matrix?(a) SparseSeries.to_coo()(b) Series.to_coo()(c) SparseSeries.to_cooser()(d) None of the mentionedThe question was posed to me in class test.This intriguing question comes from Pandas topic in section Data Analysis with Python of Data Science
Answer» The correct option is (a) SparseSeries.to_coo() EXPLANATION: EXPERIMENTAL api to TRANSFORM between sparse pandas and scipy.sparse structures.

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