# HOD Occupation Component Models¶

All of these can be imported from halotools.empirical_models.

## Zheng et al. (2007)¶

 Zheng07Cens([threshold, prim_haloprop_key]) Erf function model for the occupation statistics of central galaxies, introduced in Zheng et al. AssembiasZheng07Cens(**kwargs) Assembly-biased modulation of Zheng07Cens. Zheng07Sats([threshold, prim_haloprop_key, …]) Power law model for the occupation statistics of satellite galaxies, introduced in Kravtsov et al. AssembiasZheng07Sats(**kwargs) Assembly-biased modulation of Zheng07Sats.

## Leauthaud et al. (2011)¶

 Leauthaud11Cens([threshold, …]) HOD-style model for any central galaxy occupation that derives from a stellar-to-halo-mass relation. AssembiasLeauthaud11Cens(**kwargs) Assembly-biased modulation of Leauthaud11Cens. Leauthaud11Sats([threshold, …]) HOD-style model for any satellite galaxy occupation that derives from a stellar-to-halo-mass relation. AssembiasLeauthaud11Sats(**kwargs) Assembly-biased modulation of Leauthaud11Sats.

## Tinker et al. (2013)¶

 Tinker13Cens([threshold, prim_haloprop_key, …]) HOD-style model for a central galaxy occupation that derives from two distinct active/quiescent stellar-to-halo-mass relations.