Function to extend the explicands and apply all relevant masks/coalitions
vaeac_get_x_explain_extended(x_explain, S, index_features)The extended version of x_explain where the masks from S with indices index_features have been applied.
Matrix or data.frame/data.table. Features for which predictions should be explained.
The internal$objects$S matrix containing the possible coalitions.
Positive integer vector. Specifies the id_coalition to
apply to the present method. NULL means all coalitions. Only used internally.
Lars Henry Berge Olsen