How to transform numpy.matrix or array to scipy sparse matrix

How to transform numpy.matrix or array to scipy sparse matrix

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sparse 3d matrix/array in Python?

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Optimising Python dictionary access code

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LCP with sparse matrix

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Scipy sparse... arrays?

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Generating a dense matrix from a sparse matrix in numpy python

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Iterating through a scipy.sparse vector (or matrix)

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How to elementwise-multiply a scipy.sparse matrix by a broadcasted dense 1d array?

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Concatenate sparse matrices in Python using SciPy/Numpy

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Is there an efficient way of concatenating scipy.sparse matrices?

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scipy csr_matrix: understand indptr

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Efficiently create sparse pivot tables in pandas?

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Populate a Pandas SparseDataFrame from a SciPy Sparse Matrix

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Get U, Sigma, V* matrix from Truncated SVD in scikit-learn

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Scipy sparse matrices - purpose and usage of different implementations

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