/Python/How to convert a dense matrix into sparse matrix in python

How to convert a dense matrix into sparse matrix in python

# 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)

Similar codes

2 votes196 views3 answers
List to text python
Python
0 vote180 views1 answer
How to display percentage in pandas crosstab
Python
0 vote224 views1 answer
Creating base models django
Python Django
0 vote192 views1 answer
Plot function in numpy
Python
0 vote191 views1 answer
Django import excel file from same directory
Python
-1 vote139 views1 answer
Image analysis python
Python
14 votes177 views6 answers
How to print hello world in python
Python
-1 vote192 views3 answers
Blockchain.py
Python
11 votes174 views2 answers
Python functions with input
Python
0 vote195 views1 answer
RemoveStopWords
Python