[Solved] Given the following code, what will be the output of print(csr.data)? import numpy as np from scipy.... Given the following code, what will be the output of print(csr.data)? | SciPy

SciPy - Sparse Matrices (scipy.sparse)

Given the following code, what will be the output of print(csr.data)?

import numpy as np
from scipy.sparse import csr_matrix

arr = np.array([[0, 0, 1], [2, 0, 0], [0, 3, 0]])
csr = csr_matrix(arr)
print(csr.data)

A[1 2 3]

B[0 0 1 2 0 0 0 3 0]

C[1 2 0 3]

D[1 2 3 0]

Step-by-Step Solution

Solution:

Step 1: Understand csr.data attribute
The data attribute of a CSR matrix stores only the non-zero values in row-major order.
Step 2: Identify non-zero elements in arr
The non-zero elements are 1 (row 0, col 2), 2 (row 1, col 0), and 3 (row 2, col 1). So csr.data will be [1, 2, 3].
Final Answer:
[1 2 3] -> Option A
Quick Check:
csr.data = non-zero values list [OK]

Quick Trick: csr.data holds only non-zero values in order [OK]

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Given the following code, what will be the output of print(csr.data)?