Apply the Conservation of Events adjustment to one phase's log_mu

Given the current theta vector, analytically solve the fixmu phase's log_mu so that total predicted events = total observed events.

Usage

.hzr_conserve_events(
  theta,
  fixmu_phase,
  fixmu_pos,
  time,
  status,
  phases,
  covariate_counts,
  x_list,
  total_events
)

Arguments

theta

Full parameter vector (internal scale).

fixmu_phase

Character: name of the phase whose log_mu is solved.

fixmu_pos

Integer: position of that log_mu in theta.

time

Numeric vector of follow-up times.

status

Numeric event indicator.

phases

Named list of validated hzr_phase objects.

covariate_counts

Named integer vector.

x_list

Named list of per-phase design matrices.

total_events

Numeric: sum of observed events (precomputed).

Value

Updated theta vector with fixmu phase's log_mu adjusted.

Details

This is called BEFORE each likelihood evaluation inside the optimizer, matching the C HAZARD CONSRV entry point.