Eigen dynamic matrix initialization

问题

I am having some trouble figuring out how to set the rows and columns of a MatrixXd at runtime in Eigen. Can anyone point me to some documentation or give some pointer on how to do this?

Thanks.

回答1:

You can define a MatrixXd size at runtime by using the method resize(nrow, ncol). You can read more about resizing a dynamic matrix in this link and its API definition here.

来源：https://stackoverflow.com/questions/19821144/eigen-dynamic-matrix-initialization