Rasmus Munk LarsenandRasmus Munk Larsen
8a3d61c790
libeigen/eigen!2509 Closes #2868 Co-authored-by: Rasmus Munk Larsen <rmlarsen@gmail.com>
22 lines
472 B
C++
22 lines
472 B
C++
// SPDX-FileCopyrightText: The Eigen Authors
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// SPDX-License-Identifier: MPL-2.0
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#include <iostream>
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#include <Eigen/Dense>
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int main() {
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Eigen::MatrixXf m(2, 4);
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Eigen::VectorXf v(2);
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m << 1, 23, 6, 9, 3, 11, 7, 2;
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v << 2, 3;
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Eigen::Index index;
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// find nearest neighbour
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(m.colwise() - v).colwise().squaredNorm().minCoeff(&index);
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std::cout << "Nearest neighbour is column " << index << ":" << std::endl;
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std::cout << m.col(index) << std::endl;
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}
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