Estimating the complier average causal effect via a latent class approach using gsem

In randomized controlled trials, intention-to-treat analysis is customarily used to estimate the effect of trial. However, in presence noncompliance, this can often lead biased estimates because completely ignores varying levels actual treatment received. This a known issue that be overcome by adopting complier average causal approach, which trial had on individuals who complied with protocol. When compliance unobserved control group, obtained via latent class specification using gsem command.