parse_bf

An object of class 
<code><a rd-options="stats:formula" href="/link/formula?package=brms&version=1.4.0&to=stats%3Aformula" data-mini-rdoc="stats:formula::formula">formula</a></code> or
<code><a rd-options="brms:brmsformula" href="/link/brmsformula?package=brms&version=1.4.0&to=brms%3Abrmsformula" data-mini-rdoc="brms:brmsformula::brmsformula">brmsformula</a></code>
(or one that can be coerced to that classes): 
A symbolic description of the model to be fitted. 
The details of model specification are explained in 
<code><a rd-options="brms:brmsformula" href="/link/brmsformula?package=brms&version=1.4.0&to=brms%3Abrmsformula" data-mini-rdoc="brms:brmsformula::brmsformula">brmsformula</a></code>.

formula

A description of the response distribution and link function 
to be used in the model. This can be a family function, 
a call to a family function or a character string naming the family.
Every family function has a <code>link</code> argument allowing to specify
the link function to be applied on the response variable.
If not specified, default links are used.
For details of supported families see 
<code><a rd-options="brms:brmsfamily" href="/link/brmsfamily?package=brms&version=1.4.0&to=brms%3Abrmsfamily" data-mini-rdoc="brms:brmsfamily::brmsfamily">brmsfamily</a></code>.
By default, a linear <code>gaussian</code> model is applied.

family

An optional <code><a rd-options="" href="/link/cor_brms?package=brms&version=1.4.0" data-mini-rdoc="brms::cor_brms">cor_brms</a></code> object describing 
the correlation structure within the response variable 
(i.e., the 'autocorrelation'). 
See the documentation of <code><a rd-options="" href="/link/cor_brms?package=brms&version=1.4.0" data-mini-rdoc="brms::cor_brms">cor_brms</a></code> for a description 
of the available correlation structures. Defaults to <code>NULL</code>, 
corresponding to no correlations.

autocor

Logical; Indicates whether the left-hand side 
of <code>formula</code> (i.e. response variables and addition arguments) 
should be parsed. If <code>FALSE</code>, <code>formula</code> may also be one-sided.

check_response

Logical; Indicates whether to also include response 
variables on the right-hand side of formula <code>.$allvars</code>, 
where <code>.</code> represents the output of <code>parse_bf</code>.

resp_rhs_all


Parse <code>formula</code> or <code>brmsformula</code> objects for use 
in <span class="pkg">brms</span>.


Fit Bayesian generalized (non-)linear multilevel models
using Stan for full Bayesian inference. A wide range of distributions
and link functions are supported, allowing users to fit -- among others --
linear, robust linear, binomial, Poisson, survival, response times, ordinal,
zero-inflated, hurdle, and even non-linear models all in a
multilevel context. Further modeling options include auto-correlation
and smoothing terms, user defined dependence structures, censored data,
meta-analytic standard errors, and quite a few more.
In addition, all parameters of the response distribution can be predicted
in order to perform distributional regression.
Prior specifications are flexible and explicitly encourage
users to apply prior distributions that actually reflect their beliefs.
In addition, model fit can easily be assessed and compared with
posterior predictive checks and leave-one-out cross-validation.

PaulChristian Buerkner

brms

Bayesian Regression Models using Stan

parse_bf function

An object of class 
<code><a rd-options='stats:formula' href='formula'>formula</a></code> or
<code><a rd-options='brms:brmsformula' href='brmsformula'>brmsformula</a></code>
(or one that can be coerced to that classes): 
A symbolic description of the model to be fitted. 
The details of model specification are explained in 
<code><a rd-options='brms:brmsformula' href='brmsformula'>brmsformula</a></code>.

A description of the response distribution and link function 
to be used in the model. This can be a family function, 
a call to a family function or a character string naming the family.
Every family function has a <code>link</code> argument allowing to specify
the link function to be applied on the response variable.
If not specified, default links are used.
For details of supported families see 
<code><a rd-options='brms:brmsfamily' href='brmsfamily'>brmsfamily</a></code>.
By default, a linear <code>gaussian</code> model is applied.

An optional <code><a rd-options='' href='cor_brms'>cor_brms</a></code> object describing 
the correlation structure within the response variable 
(i.e., the 'autocorrelation'). 
See the documentation of <code><a rd-options='' href='cor_brms'>cor_brms</a></code> for a description 
of the available correlation structures. Defaults to <code>NULL</code>, 
corresponding to no correlations.


Parse <code>formula</code> or <code>brmsformula</code> objects for use 
in <span class = "pkg">brms</span>.


parse_bf: Parse Formulas of brms Models

Description

Usage

Arguments

Value

Details

See Also