Calculates the pseudo-inverse of the composed projector, mapping from the
final output space back towards the original input space. This is computed
by multiplying the pseudo-inverses of the individual projector stages in
reverse order: V_k+ %*% ... %*% V_2+ %*% V_1+.
# S3 method for composed_projector
inverse_projection(x, ...)A matrix representing the combined pseudo-inverse.
A composed_projector object.
Additional arguments passed to the underlying inverse_projection methods.
Requires that each stage implements the inverse_projection method.