how to convert a dense matrix into sparse matrix in python

Brave Buffalo answered on March 10, 2021 Popularity 10/10 Helpfulness 7/10

answer how to convert a dense matrix into sparse matrix in python

how to convert a dense matrix into sparse matrix in python

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# dense to sparse
from numpy import array
from scipy.sparse import csr_matrix
# create dense matrix
A = array([[1, 0, 0, 1, 0, 0], [0, 0, 2, 0, 0, 1], [0, 0, 0, 2, 0, 0]])
print(A)
# convert to sparse matrix (CSR method)
S = csr_matrix(A)
print(S)
# reconstruct dense matrix
B = S.todense()
print(B)

Popularity 10/10 Helpfulness 7/10 Language python

Source: Grepper

Tags: matrix python sparse-matrix

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Contributed on Mar 10 2021

Brave Buffalo

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how to convert a dense matrix into sparse matrix in python

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