dot-get_Au: Get aggregation matrix of upper sub-hierarchy

In bayesRecon: Probabilistic Reconciliation via Conditioning

Get aggregation matrix of upper sub-hierarchy

Description

Constructs the aggregation matrix Au for the sub-hierarchy composed only of the upper variables. This matrix relates the "upper uppers" to the "lowest uppers" (the most disaggregated level of the upper hierarchy).

Usage

.get_Au(A, lowest_rows = NULL)

Arguments

A	Aggregation matrix (must be hierarchical)
lowest_rows	Optional. Integer vector of row indices corresponding to the lowest upper level. If NULL, computed using .lowest_lev(A).

Value

Aggregation matrix for the upper sub-hierarchy, or NULL if all uppers are at the lowest level.

bayesRecon documentation built on March 8, 2026, 9:08 a.m.