19 lines
390 B
C++
19 lines
390 B
C++
#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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