R: Extract data passed to Stan

standata.brmsfit {brms} | R Documentation

## Extract data passed to Stan

### Description

Extract all data that was used by Stan to fit the model.

### Usage

    ## S3 method for class 'brmsfit'
    standata(
      object,
      newdata = NULL,
      re_formula = NULL,
      newdata2 = NULL,
      new_objects = NULL,
      incl_autocor = TRUE,
      ...
    )

    standata(object, ...)

### Arguments

`object` | An object of class `brmsfit`.
`newdata` | An optional data.frame for which to evaluate predictions. If `NULL` (default), the original data of the model is used. `NA` values within factors are interpreted as if all dummy variables of this factor are zero. This allows, for instance, to make predictions of the grand mean when using sum coding.
`re_formula` | formula containing group-level effects to be considered in the prediction. If `NULL` (default), include all group-level effects; if `NA`, include no group-level effects.
`newdata2` | A named `list` of objects containing new data, which cannot be passed via argument `newdata`. Required for some objects used in autocorrelation structures, or `stanvars`.
`new_objects` | Deprecated alias of `newdata2`.
`incl_autocor` | A flag indicating if correlation structures originally specified via `autocor` should be included in the predictions. Defaults to `TRUE`.
`...` | More arguments passed to `make_standata` and `validate_newdata`.

### Value

A named list containing the data originally passed to Stan.

[Package brms version 2.16.3 Index]