Simple helper function for generating a simplex volume matrix E (i.e. volume of simplex = det(E)/p-1!) of the following structure: | 1 1 ... 1 | | e_1 e_2 ... e_p | Where e_i is an i-th vertex point of the simplex.
.simplex_E(data, indices = 1:nrow(data))Matrix whose rows will be included in the simplex. This matrix should be reduced using using PCA or some other process so that it has p-1 columns before calling this function.
Locations of the rows in the dataset to use as simplex vertecies
A simplex volume matrix E, a p x p matrix whose first row contains only 1s