Summarizes posterior draws based on point estimates (mean or median),
estimation errors (SD or MAD) and quantiles. This function mainly exists to
retain backwards compatibility. It will eventually be replaced by functions
of the posterior package (see examples below).

```
posterior_summary(x, ...)
# S3 method for default
posterior_summary(x, probs = c(0.025, 0.975), robust = FALSE, ...)
# S3 method for brmsfit
posterior_summary(
x,
pars = NA,
variable = NULL,
probs = c(0.025, 0.975),
robust = FALSE,
...
)
```

## Arguments

- x
An R object.

- ...
More arguments passed to or from other methods.

- probs
The percentiles to be computed by the
`quantile`

function.

- robust
If `FALSE`

(the default) the mean is used as
the measure of central tendency and the standard deviation as
the measure of variability. If `TRUE`

, the median and the
median absolute deviation (MAD) are applied instead.

- pars
Deprecated alias of `variable`

. For reasons of backwards
compatibility, `pars`

is interpreted as a vector of regular
expressions by default unless `fixed = TRUE`

is specified.

- variable
A character vector providing the variables to extract.
By default, all variables are extracted.

## Value

A matrix where rows indicate variables
and columns indicate the summary estimates.