grouped_ggdotplotstats: Grouped histograms for distribution of a labeled numeric variable

Description

Helper function for ggstatsplot::ggdotplotstats to apply this function across multiple levels of a given factor and combining the resulting plots using ggstatsplot::combine_plots.

Usage

grouped_ggdotplotstats(
  data,
  x,
  y,
  grouping.var,
  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.

A numeric variable.

Label or grouping variable.

grouping.var

A single grouping variable (can be entered either as a bare name x or as a string "x").

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. For functions ggpiestats and ggbarstats, setting output = "proptest" will return a dataframe containing results from proportion tests.

...

Arguments passed on to ggdotplotstats

point.args: A list of additional aesthetic arguments passed to geom_point.
test.value: A number specifying the value of the null hypothesis (Default: 0).
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.
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.
bf.prior: A number between 0.5 and 2 (default 0.707), the prior width to use in calculating Bayes factors.
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).
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 t-test). The default is "g".
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).
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.
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.
messages: Decides whether messages references, notes, and warnings are to be displayed (Default: TRUE).
ylab: Labels for x- and y- axis variables, respectively (Defaults: "regression coefficient" and "term").

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/ggdotplotstats.html

Examples

Run this code

# NOT RUN {
# for reproducibility
set.seed(123)

# removing factor level with very few no. of observations
df <- dplyr::filter(.data = ggplot2::mpg, cyl %in% c("4", "6", "8"))

# plot
ggstatsplot::grouped_ggdotplotstats(
  data = df,
  x = "cty",
  y = "manufacturer",
  grouping.var = "cyl",
  test.value = 15.5,
  title.prefix = "cylinder count",
  ggplot.component = ggplot2::scale_x_continuous(
    sec.axis = ggplot2::dup_axis(),
    limits = c(12, 24),
    breaks = seq(12, 24, 2)
  ),
  messages = FALSE
)
# }

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Description

Usage

Arguments

References

See Also

Examples