Eigen 3.3: SparseMatrix B.col(i) = A.col(i): bad matrix

joaoruileal Registered Member Posts 18 Karma 0 OS	Eigen 3.3: SparseMatrix B.col(i) = A.col(i): bad matrix Sun Nov 20, 2016 10:46 pm Hello! The following code snippet gives me incorrect results with Eigen 3.3: Code: Select all     Eigen::SparseMatrix<double> A(4, 3);     A.coeffRef(0, 0) = 1.1;     A.coeffRef(1, 0) = 2.2;     A.coeffRef(2, 0) = 3.3;     A.coeffRef(0, 1) = 4.4;     A.coeffRef(1, 1) = 5.5;     A.coeffRef(2, 1) = 6.6;     A.coeffRef(3, 1) = 7.7;     A.coeffRef(2, 2) = 8.8;     A.coeffRef(3, 2) = 9.9;     Eigen::SparseMatrix<double> B(4, 3);     B.col(0) = A.col(0);     B.col(1) = A.col(1);     std::cout << B << std::endl; The output is Code: Select all Nonzero entries: (1.1,0) (2.2,1) (3.3,2) (1.1,0) (2.2,1) (3.3,2) (4.4,0) Outer pointers: 0 3 7  $ 1.1 1.1 4.4 2.2 2.2 0 3.3 3.3 0 0 0 0 Notice the duplicate elements and missing elements.
ggael Moderator Posts 3447 Karma 19 OS	Re: Eigen 3.3: SparseMatrix B.col(i) = A.col(i): bad matrix   Mon Nov 21, 2016 9:39 pm Thank you for the report. Fixed: https://bitbucket.org/eigen/eigen/commits/10a1de586145
joaoruileal Registered Member Posts 18 Karma 0 OS	Re: Eigen 3.3: SparseMatrix B.col(i) = A.col(i): bad matrix Tue Nov 22, 2016 9:40 pm Thank you!

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