grouped_gghistostats(
data,
x,
grouping.var,
binwidth = NULL,
title.prefix = NULL,
output = "plot",
...,
plotgrid.args = list(),
title.text = NULL,
title.args = list(size = 16, fontface = "bold"),
caption.text = NULL,
caption.args = list(size = 10),
sub.text = NULL,
sub.args = list(size = 12)
)
Arguments
data 
A dataframe (or a tibble) from which variables specified are to
be taken. A matrix or tables will not be accepted. 
x 
A numeric variable. 
grouping.var 
A single grouping variable (can be entered either as a
bare name x or as a string "x" ). 
binwidth 
The width of the histogram bins. Can be specified as a
numeric value, or a function that calculates width from x . The default is
to use the max(x)  min(x) / sqrt(N) . You should always check this value
and explore multiple widths to find the best to illustrate the stories in
your data. 
title.prefix 
Character string specifying the prefix text for the fixed
plot title (name of each factor level) (Default: NULL ). If NULL , the
variable name entered for grouping.var will be used. 
output 
Character that describes what is to be returned: can be
"plot" (default) or "subtitle" or "caption" . Setting this to
"subtitle" will return the expression containing statistical results. If
you have set results.subtitle = FALSE , then this will return a NULL .
Setting this to "caption" will return the expression containing details
about Bayes Factor analysis, but valid only when type = "parametric" and
bf.message = TRUE , otherwise this will return a NULL . 
... 
Arguments passed on to gghistostats
bar.measure Character describing what value needs to be represented as
height in the bar chart. This can either be "count" , which shows number
of points in bin, or "density" , which density of points in bin, scaled to
integrate to 1, or "proportion ", which shows relative frequencies of
observations in each bin, or "mix ", which shows both count and
proportion in the same plot.
normal.curve A logical value that decides whether to superimpose a
normal curve using stats::dnorm(mean(x), sd(x)) . Default is FALSE .
normal.curve.args A list of additional aesthetic arguments to be
passed to the normal curve.
bar.fill Character input that decides which color will uniformly fill
all the bars in the histogram (Default: "grey50" ).
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 ttest: " .
type Type of statistic expected ("parametric" or "nonparametric"
or "robust" or "bayes" ).Corresponding abbreviations are also accepted:
"p" (for parametric), "np" (nonparametric), "r" (robust), or
"bf" resp.
test.value A number specifying the value of the null hypothesis
(Default: 0 ).
bf.prior A numeric value between 0.5 and 2 (default 0.707 ), the
prior width to use in calculating Bayes Factors.
effsize.type Type of effect size needed for parametric tests. The
argument can be "biased" ("d" for Cohen's d) or "unbiased"
("g" Hedge's g for ttest). The default is "g" .
effsize.noncentral Logical indicating whether to use noncentral
tdistributions for computing the confidence interval for Cohen's d
or Hedge's g (Default: TRUE ).
conf.level Scalar between 0 and 1. If unspecified, the defaults return
95% lower and upper confidence intervals (0.95 ).
nboot Number of bootstrap samples for computing confidence interval
for the effect size (Default: 100 ).
k Number of digits after decimal point (should be an integer)
(Default: k = 2 ).
messages Decides whether messages references, notes, and warnings are
to be displayed (Default: TRUE ).
test.k Integer denoting the number of decimal places expected for
test.value label. (Default: 0 ).
test.value.line Logical that decides whether a line corresponding to
the test.value should be superimposed on the plot.
test.value.line.args A list of additional
aesthetic arguments to be passed to the geom_line used to display the
lines corresponding to the centrality parameter and test value.
test.value.label.args A list of additional
aesthetic arguments to be passed to the geom_label used to display the
label corresponding to the centrality parameter and test value.
centrality.parameter Decides which measure of central tendency
("mean" or "median" ) is to be displayed as a vertical line. To not show
any parameter, set this to "none" .
centrality.k Integer denoting the number of decimal places expected
for centrality parameter label. (Default: 2 ).
centrality.line.args A list of additional
aesthetic arguments to be passed to the geom_line used to display the
lines corresponding to the centrality parameter and test value.
centrality.label.args A list of additional
aesthetic arguments to be passed to the geom_label used to display the
label corresponding to the centrality parameter and test value.
xlab Labels for x and y axis variables. If NULL (default),
variable names for x and y will be used.
subtitle The text for the plot subtitle. Will work only if
results.subtitle = FALSE .
caption The text for the plot caption.
bf.message Logical that decides whether to display Bayes Factor in
favor of the null hypothesis. This argument is relevant only for
parametric test (Default: TRUE ).
ggtheme A function, ggplot2 theme name. Default value is
ggplot2::theme_bw() . Any of the ggplot2 themes, or themes from
extension packages are allowed (e.g., ggthemes::theme_fivethirtyeight() ,
hrbrthemes::theme_ipsum_ps() , etc.).
ggstatsplot.layer Logical that decides whether theme_ggstatsplot
theme elements are to be displayed along with the selected ggtheme
(Default: TRUE ). theme_ggstatsplot is an opinionated theme layer that
override some aspects of the selected ggtheme .
results.subtitle Decides whether the results of statistical tests are
to be displayed as a subtitle (Default: TRUE ). If set to FALSE , only
the plot will be returned.
ggplot.component A ggplot component to be added to the plot prepared
by ggstatsplot . This argument is primarily helpful for grouped_ variant
of the current function. Default is NULL . The argument should be entered
as a function.

plotgrid.args 
A list of additional arguments to cowplot::plot_grid . 
title.text 
String or plotmath expression to be drawn as title for the
combined plot. 
title.args 
A list of additional arguments
provided to title , caption and sub , resp. 
caption.text 
String or plotmath expression to be drawn as the caption
for the combined plot. 
caption.args 
A list of additional arguments
provided to title , caption and sub , resp. 
sub.text 
The label with which the combined plot should be annotated.
Can be a plotmath expression. 
sub.args 
A list of additional arguments
provided to title , caption and sub , resp. 
References
https://indrajeetpatil.github.io/ggstatsplot/articles/web_only/gghistostats.html
See also
Examples
#> Warning: full precision may not have been achieved in 'pnt{final}'
#> Warning: full precision may not have been achieved in 'pnt{final}'
#> Warning: full precision may not have been achieved in 'pnt{final}'
#> Warning: full precision may not have been achieved in 'pnt{final}'
#> t is large; approximation invoked.
# }