base_nuts.hpp:110 — Unnecessary .transpose() on column vector

[andrepfeuffer]

Eigen::VectorXd rho = this->z_.p.transpose();
z_.p is a VectorXd (D×1). .transpose() produces a RowVectorXd (1×D), which is
then assigned to a VectorXd (D×1). This works due to Eigen's dynamic resizing
but could trigger debug assertions in strict Eigen builds. Should just be rho
= this->z_.p;.