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eigen/doc/snippets/Slicing_arrayexpr.cpp

6 lines
198 B
C++

ArrayXi ind(5);
ind << 4, 2, 5, 5, 3;
MatrixXi A = MatrixXi::Random(4, 6);
cout << "Initial matrix A:\n" << A << "\n\n";
cout << "A(all,ind-1):\n" << A(Eigen::placeholders::all, ind - 1) << "\n\n";