meatABC: Matrix product of A^TBC where B is a short list of parameters
A and C must be matrices
B is parameterized by phi, row.list, and assumed symmetric without repeats, with phi[1] along diagonal
Description
Matrix product of A^TBC where B is a short list of parameters
A and C must be matrices
B is parameterized by phi, row.list, and assumed symmetric without repeats, with phi[1] along diagonal