gg_groupplot {scipub}

Create ggplot to display group differences (box+point+hist)

Description

The gg_groupplot function can be used to create group difference plots for scientific publication. This is intended to summarize a continuous outcome (y) based on a factor ('x') from an input dataset (data). The plot will include standard ggplot2::geom_boxplot indicating 25th, median, and 75th percentile for the box and 1.5 * IQR for the whiskers. Outliers are not highlighted. Raw data is displayed with standard ggplot2::geom_point and lateral but not vertical jittering. Histograms are shown with gghalves::geom_half_violin to the right of each boxplot. If meanline = = TRUE (default), gray dots will indicate the mean for each variable (vs. median in boxplot) connected by a gray line. This function will drop any NA values. Requires ggplot2 and gghalves libraries.

Usage

gg_groupplot(data, x, y, meanline = c(TRUE, FALSE))

Arguments

data

The input dataset.

x

The grouping factor, e.g. Sex

y

The numeric outcome variable, e.g. Age

meanline

Optional indicator of means

Value

Output group plot

Examples

gg_groupplot(data = psydat, x = Sex, y = depressT, meanline = TRUE)