SparseEfficiency

[emanuel-schmid]

SparseEfficiencyWarning

Changing the sparsity structure of a csr_matrix is expensive. lil and dok are more efficient.

Occurrences

• scipy.sparse._index:168
• scipy.sparse._index:210

Raise in

• climada.hazard.test.test_base
• climada.engine.test.test_impact_calc

(4 times during tests)

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SparseEfficiencyWarning

Comparing a sparse matrix with -2 using > is inefficient. Try using <= instead.

Occurrence

• climada.entity.exposures.base:1465