gs gs120 Data Analysis with Python - Pandas - Quiz No.3
gs gs120 Data Structure Quiz
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Question 1: Which of the following is the base layer for all of the sparse indexed data structures?
SArray
SparseArray
PyArray
None of the mentioned
Question 2: Point out the correct statement.
All of the standard pandas data structures have a to_sparse method
Any sparse object can be converted back to the standard dense form by calling to_dense
The sparse objects exist for memory efficiency reasons
All of the mentioned
Question 3: Which of the following is not an indexed object?
SparseSeries
SparseDataFrame
SparsePanel
None of the mentioned
Question 4: Which of the following list-like data structure is used for managing a dynamic collection of SparseArrays?
SparseList
GeoList
SparseSeries
All of the mentioned
Question 5: Point out the wrong statement.
to_array. append can accept scalar values or any 2-dimensional sequence
Two kinds of SparseIndex are implemented
The integer format keeps an arrays of all of the locations where the data are not equal to the fill value
None of the mentioned
Question 6: Which of the following method is used for transforming a SparseSeries indexed by a MultiIndex to a scipy.sparse.coo_matrix?
SparseSeries.to_coo()
Series.to_coo()
SparseSeries.to_cooser()
None of the mentioned
Question 8: Which of the following is used for testing for membership in the list of column names?
in
out
elseif
none of the mentioned
Question 9: Which of the following indexing capabilities is used as a concise means of selecting data from a pandas object?
In
ix
ipy
none of the mentioned
