Function log

src/utilities/data/Matrix.cpp:229–239

take the natural logarithm of a Matrix

/// take the natural logarithm of a Matrix
Matrix log(const Matrix& v) {
  size_t M = v.size1();
  size_t N = v.size2();
  Matrix result(M, N);
  for (size_t i = 0; i < M; ++i) {
    for (size_t j = 0; j < N; ++j) {
      result(i, j) = std::log(v(i, j));
    }
  }
  return result;
}

/// take the logarithm of a Matrix with certain base
Matrix log(const Matrix& v, double base) {