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Diffstat (limited to 'doc/snippets/LLT_solve.cpp')
-rw-r--r-- | doc/snippets/LLT_solve.cpp | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/doc/snippets/LLT_solve.cpp b/doc/snippets/LLT_solve.cpp new file mode 100644 index 000000000..76ab09ec5 --- /dev/null +++ b/doc/snippets/LLT_solve.cpp @@ -0,0 +1,8 @@ +typedef Matrix<float,Dynamic,2> DataMatrix; +// let's generate some samples on the 3D plane of equation z = 2x+3y (with some noise) +DataMatrix samples = DataMatrix::Random(12,2); +VectorXf elevations = 2*samples.col(0) + 3*samples.col(1) + VectorXf::Random(12)*0.1; +// and let's solve samples * [x y]^T = elevations in least square sense: +Matrix<float,2,1> xy; +(samples.adjoint() * samples).llt().solve((samples.adjoint()*elevations), &xy); +cout << xy << endl; |