A `pairs`

method that is customized for MCMC output.

```
# S3 method for brmsfit
pairs(x, pars = NA, variable = NULL, regex = FALSE, fixed = FALSE, ...)
```

## Arguments

- x
An object of class `brmsfit`

- pars
Deprecated alias of `variable`

.
Names of the parameters to plot, as given by a
character vector or a regular expression.

- variable
Names of the variables (parameters) to plot, as given by a
character vector or a regular expression (if `regex = TRUE`

). By
default, a hopefully not too large selection of variables is plotted.

- regex
Logical; Indicates whether `variable`

should
be treated as regular expressions. Defaults to `FALSE`

.

- fixed
(Deprecated) Indicates whether parameter names
should be matched exactly (`TRUE`

) or treated as
regular expressions (`FALSE`

). Default is `FALSE`

and only works with argument `pars`

.

- ...
Further arguments to be passed to
`mcmc_pairs`

.

## Details

For a detailed description see
`mcmc_pairs`

.

## Examples

```
if (FALSE) {
fit <- brm(count ~ zAge + zBase * Trt
+ (1|patient) + (1|visit),
data = epilepsy, family = "poisson")
pairs(fit, variable = variables(fit)[1:3])
pairs(fit, variable = "^sd_", regex = TRUE)
}
```