CSC矩阵总结

    import numpy as np
    from scipy.sparse import csc_matrix
    indptr = np.array([0, 2, 3, 6])
    indices = np.array([0, 2, 2, 0, 1, 2])
    data = np.array([1, 2, 3, 4, 5, 6])
    csc_matrix((data, indices, indptr), shape=(3, 3)).toarray()