project

Given 2 transformation matrices, (WT,V) of shapes (Nk,self.states) and (self.states,Nk) respectively, this routine returns a projection of the state space ss_here according to:

Anew = WT A V Bnew = WT B Cnew = C V Dnew = D

The projected model has the same number of inputs/outputs as the original one, but Nk states.