R: Trace and Density Plots for MCMC Samples

plot.brmsfit {brms} | R Documentation

## Trace and Density Plots for MCMC Samples

### Description

Trace and Density Plots for MCMC Samples

### Usage

    ## S3 method for class 'brmsfit'
    plot(x, pars = NA, combo = c("dens", "trace"),
      N = 5, exact_match = FALSE, theme = NULL, plot = TRUE,
      ask = TRUE, newpage = TRUE, ...)

### Arguments

`x` | An object of class `brmsfit`.
`pars` | Names of the parameters to plot, as given by a character vector or a regular expression. By default, all parameters except for group-level and smooth effects are plotted.
`combo` | A character vector with at least two elements. Each element of `combo` corresponds to a column in the resulting graphic and should be the name of one of the available `MCMC` functions (omitting the `mcmc_` prefix).
`N` | The number of parameters plotted per page.
`exact_match` | Indicates whether parameter names should be matched exactly or treated as regular expression. Default is `FALSE`.
`theme` | A `theme` object modifying the appearance of the plots. For some basic themes see `ggtheme` and `theme_default`.
`plot` | logical; indicates if plots should be plotted directly in the active graphic device. Defaults to `TRUE`.
`ask` | logical; indicates if the user is prompted before a new page is plotted. Only used if `plot` is `TRUE`.
`newpage` | logical; indicates if the first set of plots should be plotted to a new page. Only used if `plot` is `TRUE`.
`...` | Further arguments passed to `mcmc_combo`.

### Value

An invisible list of `gtable` objects.

### Author(s)

Paul-Christian Buerkner paul.buerkner@gmail.com

### Examples

    ## Not run:
    fit <- brm(count ~ log_Age_c + log_Base4_c * Trt_c
               + (1|patient) + (1|visit),
               data = epilepsy, family = "poisson")
    plot(fit)
    ## plot population-level effects only
    plot(fit, pars = "^b_")

    ## End(Not run)

[Package brms version 2.6.0 Index]