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Hierarchical clustering ( scipy.cluster.hierarchy )
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Linear algebra ( scipy.linalg )
Low-level BLAS functions ( scipy.linalg.blas )
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Interpolative matrix decomposition ( scipy.linalg.interpolative )
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Multidimensional image processing ( scipy.ndimage )
Orthogonal distance regression ( scipy.odr )
Optimization and root finding ( scipy.optimize )
Cython optimize zeros API
Signal processing ( scipy.signal )
Sparse matrices ( scipy.sparse )
Sparse linear algebra ( scipy.sparse.linalg )
Compressed sparse graph routines ( scipy.sparse.csgraph )
Spatial algorithms and data structures ( scipy.spatial )
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Contingency table functions ( scipy.stats.contingency )
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Quasi-Monte Carlo submodule ( scipy.stats.qmc )
Random Number Generators ( scipy.stats.sampling )
Low-level callback functions

scipy.sparse.csr_matrix.sum_duplicates#

csr_matrix.sum_duplicates()[source]#

Eliminate duplicate matrix entries by adding them together

This is an in place operation.

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