all_crossterms function

Create crossterms from two matrices

A helper function for G_generate that produces cross-terms.

all_crossterms(Z_i, Z_j, make_sparse = TRUE)

Arguments

• Z_i: Matrix
• Z_j: Matrix
• make_sparse: Boolean for whether to output a sparse matrix. Default is TRUE.

Returns

Matrix of cross-terms between Z_i and Z_j.