freebird

Estimates and provides inference for quantities that assess high dimensional mediation and potential surrogate markers including the direct effect of treatment, indirect effect of treatment, and the proportion of treatment effect explained by a surrogate/mediator; details are described in Zhou et al (2022) doi:10.1002/sim.9352 and Zhou et al (2020) doi:10.1093/biomet/asaa016. This package relies on the optimization software 'MOSEK', .