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to_row_vector.hpp
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1 #ifndef STAN_MATH_PRIM_MAT_FUN_TO_ROW_VECTOR_HPP
2 #define STAN_MATH_PRIM_MAT_FUN_TO_ROW_VECTOR_HPP
3
4 #include <stan/math/prim/mat/fun/Eigen.hpp>
5 // stan::scalar_type
6 #include <vector>
7
8 namespace stan {
9 namespace math {
10
11 using Eigen::Dynamic;
12 using Eigen::Matrix;
13 using std::vector;
14
15 // row_vector to_row_vector(matrix)
16 // row_vector to_row_vector(vector)
17 // row_vector to_row_vector(row_vector)
18 template <typename T, int R, int C>
19 inline Matrix<T, 1, Dynamic>
20 to_row_vector(const Matrix<T, R, C>& matrix) {
21 return Matrix<T, 1, Dynamic>::Map(matrix.data(),
22 matrix.rows()*matrix.cols());
23 }
24
25 // row_vector to_row_vector(real[])
26 template <typename T>
27 inline Matrix<T, 1, Dynamic>
28 to_row_vector(const vector<T> & vec) {
29 return Matrix<T, 1, Dynamic>::Map(vec.data(), vec.size());
30 }
31
32 // row_vector to_row_vector(int[])
33 inline Matrix<double, 1, Dynamic>
34 to_row_vector(const vector<int> & vec) {
35 int C = vec.size();
36 Matrix<double, 1, Dynamic> result(C);
37 double* datap = result.data();
38 for (int i=0; i < C; i++)
39 datap[i] = vec[i];
40 return result;
41 }
42
43 }
44 }
45 #endif
stan::math::to_row_vector
Matrix< T, 1, Dynamic > to_row_vector(const Matrix< T, R, C > &matrix)
Definition: to_row_vector.hpp:20
Eigen.hpp

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