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9 lines
456 B
C++
9 lines
456 B
C++
typedef Matrix<float,Dynamic,2> DataMatrix;
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// let's generate some samples on the 3D plane of equation z = 2x+3y (with some noise)
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DataMatrix samples = DataMatrix::Random(12,2);
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VectorXf elevations = 2*samples.col(0) + 3*samples.col(1) + VectorXf::Random(12)*0.1;
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// and let's solve samples * [x y]^T = elevations in least square sense:
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Matrix<float,2,1> xy
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= (samples.adjoint() * samples).llt().solve((samples.adjoint()*elevations));
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cout << xy << endl;
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