Histogram with statistical details from one-sample test included in the plot as a subtitle.
gghistostats(data, x, binwidth = NULL, bar.measure = "count",
xlab = NULL, stat.title = NULL, title = NULL, subtitle = NULL,
caption = NULL, type = "parametric", test.value = 0,
bf.prior = 0.707, bf.message = TRUE, robust.estimator = "onestep",
effsize.type = "g", effsize.noncentral = TRUE, conf.level = 0.95,
nboot = 100, k = 2, ggtheme = ggplot2::theme_bw(),
ggstatsplot.layer = TRUE, fill.gradient = FALSE,
low.color = "#0072B2", high.color = "#D55E00", bar.fill = "grey50",
results.subtitle = TRUE, centrality.para = "mean",
centrality.color = "blue", centrality.size = 1,
centrality.linetype = "dashed", centrality.line.labeller = TRUE,
centrality.k = 2, test.value.line = FALSE,
test.value.color = "black", test.value.size = 1,
test.value.linetype = "dashed", test.line.labeller = TRUE,
test.k = 0, normal.curve = FALSE, normal.curve.color = "black",
normal.curve.linetype = "solid", normal.curve.size = 1,
ggplot.component = NULL, return = "plot", messages = TRUE)
A dataframe (or a tibble) from which variables specified are to be taken. A matrix or tables will not be accepted.
A numeric variable.
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.
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.
Labels for x
and y
axis variables. If NULL
(default),
variable names for x
and y
will be used.
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: "
.
The text for the plot title.
The text for the plot subtitle. Will work only if
results.subtitle = FALSE
.
The text for the plot caption.
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.
A number specifying the value of the null hypothesis
(Default: 0
).
A number between 0.5
and 2
(default 0.707
), the prior
width to use in calculating Bayes factors.
Logical that decides whether to display Bayes Factor in
favor of the null hypothesis. This argument is relevant only for
parametric test (Default: TRUE
).
If test = "robust"
robust estimator to be used
("onestep"
(Default), "mom"
, or "median"
). For more, see
?WRS2::onesampb
.
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 t-test). The default is
Logical indicating whether to use non-central
t-distributions for computing the confidence interval for Cohen's d
or Hedge's g (Default: TRUE
).
Scalar between 0 and 1. If unspecified, the defaults return
95%
lower and upper confidence intervals (0.95
).
Number of bootstrap samples for computing confidence interval
for the effect size (Default: 100
).
Number of digits after decimal point (should be an integer)
(Default: k = 2
).
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.).
Logical that decides whether theme_ggstatsplot
theme elements are to be displayed along with the selected ggtheme
(Default: TRUE
).
Logical decides whether color fill gradient is to be
displayed (Default: FALSE
). If FALSE
, the legend and the color gradient
will also be removed. The default is set to FALSE
because the gradient
provides redundant information in light of y-axis labels.
Colors for low and high ends of the gradient. Defaults are colorblind-friendly.
If fill.gradient = FALSE
, then bar.fill
decides which
color will uniformly fill all the bars in the histogram (Default:
"grey50"
).
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.
Decides which measure of central tendency ("mean"
or "median"
) is to be displayed as a vertical line.
Decides color for the vertical line for centrality
parameter (Default: "blue"
).
Decides size for the vertical line for centrality
parameter (Default: 1.2
).
Decides linetype for the vertical line for
centrality parameter (Default: "dashed"
).
A logical that decides whether line labels
should be displayed for the centrality.para line (Default: TRUE
).
Integer denoting the number of decimal places expected
for centrality parameter label. (Default: 2
).
Decides whether test value is to be displayed as a
vertical line (Default: FALSE
).
Decides color for the vertical line denoting test
value (Default: "black"
).
Decides size for the vertical line for test value
(Default: 1.2
).
Decides linetype for the vertical line for test
value (Default: "dashed"
).
A logical that decides whether line labels should
be displayed for test.value line (Default: TRUE
).
Integer denoting the number of decimal places expected for
test.value
label. (Default: 0
).
Logical decides whether to super-impose a normal curve
using stats::dnorm(mean(x), sd(x))
. Default is FALSE
.
If
normal.curve = TRUE
, then these arguments can be used to modify color
(Default: "black"
), size (default: 1.0
), linetype (default: "solid"
).
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. If the given function has an argument axes.range.restrict
and if it has been set to TRUE
, the added ggplot component might not
work as expected.
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,
which will be a NULL
if you set results.subtitle = FALSE
. Setting this
to "caption"
will return the expression containing details about Bayes
Factor analysis, but valid only when type = "p"
and bf.message = TRUE
,
otherwise this will return a NULL
.
Decides whether messages references, notes, and warnings are
to be displayed (Default: TRUE
).
https://indrajeetpatil.github.io/ggstatsplot/articles/web_only/gghistostats.html
grouped_gghistostats
, ggdotplotstats
,
grouped_ggdotplotstats
# NOT RUN {
# most basic function call with the defaults
# this is the **only** function where data argument can be `NULL`
ggstatsplot::gghistostats(
data = ToothGrowth,
x = len,
xlab = "Tooth length",
centrality.para = "median"
)
# a detailed function call
ggstatsplot::gghistostats(
data = iris,
x = Sepal.Length,
bar.measure = "mix",
type = "p",
caption = substitute(paste(italic("Note"), ": Iris dataset by Fisher.")),
bf.prior = 0.8,
test.value = 3,
test.value.line = TRUE,
binwidth = 0.10,
bar.fill = "grey50"
)
# }
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