# subtitle_t_robust

##### Making text subtitle for the robust t-test (between- and within-subjects designs).

Making text subtitle for the robust t-test (between- and within-subjects designs).

##### Usage

```
subtitle_t_robust(data, x, y, tr = 0.1, paired = FALSE, nboot = 100,
conf.level = 0.95, conf.type = "norm", k = 2, stat.title = NULL,
messages = TRUE, ...)
```

##### Arguments

- data
A dataframe (or a tibble) from which variables specified are to be taken. A matrix or tables will

**not**be accepted.- x
The grouping variable from the dataframe

`data`

.- y
The response (a.k.a. outcome or dependent) variable from the dataframe

`data`

.- tr
Trim level for the mean when carrying out

`robust`

tests. If you get error stating "Standard error cannot be computed because of Winsorized variance of 0 (e.g., due to ties). Try to decrease the trimming level.", try to play around with the value of`tr`

, which is by default set to`0.1`

. Lowering the value might help.- paired
Logical that decides whether the design is repeated measures/within-subjects (in which case one-way Friedman Rank Sum Test will be carried out) or between-subjects (in which case one-way Kruskal<U+2013>Wallis H test will be carried out). The default is

`FALSE`

.- nboot
Number of bootstrap samples for computing confidence interval for the effect size (Default:

`100`

).- conf.level
Scalar between 0 and 1. If unspecified, the defaults return

`95%`

lower and upper confidence intervals (`0.95`

).- conf.type
A vector of character strings representing the type of intervals required. The value should be any subset of the values

`"norm"`

,`"basic"`

,`"perc"`

,`"bca"`

. For more, see`?boot::boot.ci`

.- k
Number of digits after decimal point (should be an integer) (Default:

`k = 2`

).- stat.title
A character describing the test being run, which will be added as a prefix in the subtitle. The default is

`NULL`

. An example of a`stat.title`

argument will be something like`"Student's t-test: "`

.- messages
Decides whether messages references, notes, and warnings are to be displayed (Default:

`TRUE`

).- ...
Additional arguments.

##### Examples

```
# NOT RUN {
# with defaults
subtitle_t_robust(
data = sleep,
x = group,
y = extra
)
# changing defaults
subtitle_t_robust(
data = ToothGrowth,
x = supp,
y = len,
nboot = 10,
k = 1,
tr = 0.2
)
# within-subjects design
ggstatsplot::subtitle_t_robust(
data = dplyr::filter(
ggstatsplot::intent_morality,
condition %in% c("accidental", "attempted"),
harm == "Poisoning"
),
x = condition,
y = rating,
paired = TRUE,
nboot = 25
)
# }
```

*Documentation reproduced from package ggstatsplot, version 0.0.11, License: GPL-3 | file LICENSE*