# bf_two_sample_ttest

From ggstatsplot v0.0.11
by Indrajeet Patil

##### Bayesian two-samples *t*-test.

Bayesian two-samples *t*-test.

##### Usage

```
bf_two_sample_ttest(data, x, y, paired = FALSE, bf.prior = 0.707,
caption = NULL, output = "null", k = 2, ...)
```

##### Arguments

- data
for use with

`formula`

, a data frame containing all the data- x
a vector of observations for the first (or only) group

- y
a vector of observations for the second group (or condition, for paired)

- paired
if

`TRUE`

, observations are paired- bf.prior
A number between

`0.5`

and`2`

(default`0.707`

), the prior width to use in calculating Bayes factors.- caption
The text for the plot caption.

- output
Can either be

`"null"`

(or`"caption"`

or`"H0"`

, which will contain text for evidence in favor of the null hypothesis or H0) or`"alternative"`

(or`"title"`

or`"H1"`

) or`"results"`

, which will return a dataframe with results all the details).- k
Number of digits after decimal point (should be an integer) (Default:

`k = 2`

).- ...
further arguments to be passed to or from methods.

##### See Also

##### Examples

```
# NOT RUN {
# for reproducibility
set.seed(123)
# to get caption (default)
bf_two_sample_ttest(
data = mtcars,
x = am,
y = wt,
paired = FALSE,
bf.prior = 0.880
)
# to see results
bf_two_sample_ttest(
data = mtcars,
x = am,
y = wt,
paired = FALSE,
output = "results"
)
# for paired sample test
bf_two_sample_ttest(
data = dplyr::filter(
ggstatsplot::intent_morality,
condition %in% c("accidental", "attempted"),
harm == "Poisoning"
),
x = condition,
y = rating,
paired = TRUE,
output = "results"
)
# }
```

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

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