A short-cut for `history_parameter(object, "tau", ...)`

.

## Usage

```
history_tau(
object,
summary = TRUE,
probs = c(0.055, 0.945),
includePopulationLevel = TRUE
)
```

## Arguments

- object
An object of class cumhist

- summary
Whether summary statistics should be returned instead of raw sample values. Defaults to

`TRUE`

- probs
The percentiles used to compute summary, defaults to 89% credible interval.

- includePopulationLevel
Logical, for pooled random effect only. Whether to include population mean as a separate

`"_population"`

level, default to`TRUE`

.

## Value

A single value, if fixed value was used. A vector or a tibble, depending on the option used (single intercept, independent or random intercepts), and whether summary was requested.

## Examples

```
# \donttest{
br_fit <- fit_cumhist(br_singleblock, state="State", duration="Duration")
#>
#> SAMPLING FOR MODEL 'historylm' NOW (CHAIN 1).
#> Chain 1:
#> Chain 1: Gradient evaluation took 0 seconds
#> Chain 1: 1000 transitions using 10 leapfrog steps per transition would take 0 seconds.
#> Chain 1: Adjust your expectations accordingly!
#> Chain 1:
#> Chain 1:
#> Chain 1: Iteration: 1 / 2000 [ 0%] (Warmup)
#> Chain 1: Iteration: 200 / 2000 [ 10%] (Warmup)
#> Chain 1: Iteration: 400 / 2000 [ 20%] (Warmup)
#> Chain 1: Iteration: 600 / 2000 [ 30%] (Warmup)
#> Chain 1: Iteration: 800 / 2000 [ 40%] (Warmup)
#> Chain 1: Iteration: 1000 / 2000 [ 50%] (Warmup)
#> Chain 1: Iteration: 1001 / 2000 [ 50%] (Sampling)
#> Chain 1: Iteration: 1200 / 2000 [ 60%] (Sampling)
#> Chain 1: Iteration: 1400 / 2000 [ 70%] (Sampling)
#> Chain 1: Iteration: 1600 / 2000 [ 80%] (Sampling)
#> Chain 1: Iteration: 1800 / 2000 [ 90%] (Sampling)
#> Chain 1: Iteration: 2000 / 2000 [100%] (Sampling)
#> Chain 1:
#> Chain 1: Elapsed Time: 6.292 seconds (Warm-up)
#> Chain 1: 6.934 seconds (Sampling)
#> Chain 1: 13.226 seconds (Total)
#> Chain 1:
history_tau(br_fit)
#> # A tibble: 1 x 3
#> Estimate `5.5%` `94.5%`
#> <dbl> <dbl> <dbl>
#> 1 0.992 0.790 1.26
# }
```