gplotTwoWay: Box-and-Whisker, Violin Plots and Error Bars for Two-Way...

In twowaytests: Two-Way Tests in Independent Groups Designs

Box-and-Whisker, Violin Plots and Error Bars for Two-Way Layout

Description

gplotTwoWay produces box-and-whisker, violin plots, and error bars for two-way layout.

Usage

gplotTwoWay(formula, data, type = c("errorbar", "violin", "boxplot"), 
  color_manual = NULL, back_color = FALSE, xlab = NULL, ylab = NULL, 
  title = NULL, legend.title = NULL, width = NULL, option = c("sd", "se"), 
  na.rm = TRUE)

Arguments

formula	a formula of the form lhs ~ rhs where lhs gives the sample values and rhs gives the corresponding two factors.
data	a data frame containing the variables in formula.
type	a character string to select one of the plots. "errorbar": error bar, "violin": violin plot, and "boxplot": box-and-whisker plot.
color_manual	a vector of colors. A palette can also be defined with wes_palette. Default is set to "FantasticFox1" available in wes_palette.
back_color	a logical to make background grey or white.
xlab	a label for the x axis, defaults to a description of x.
ylab	a label for the y axis, defaults to a description of y.
title	a main title for the plot.
legend.title	a legend title for the plot.
width	a numeric giving the width of the little lines at the tops and bottoms of the error bars (defaults to 0.35) and the width of the boxes for box-and-whisker plots (defaults to 0.75).
option	a character string to select one of the options to draw error bars with standard error or standard deviation. "se": standard error, "sd": standard deviation. Defaults to "se".
na.rm	a logical indicating whether NA values should be stripped before the computation proceeds.

Details

The upper whisker of box-and-whisker plots extends from the hinge to the highest value that is within 1.5 * IQR of the hinge, where IQR is the inter-quartile range. The lower whisker extends from the hinge to the lowest value within 1.5 * IQR of the hinge. Data out of the ends of the whiskers are outliers and plotted as points.

Author(s)

Osman Dag, Muhammed Ali Yilmaz

Examples

library(twowaytests)
data(alveolar)

# to obtain error bar (mean +- standard deviation) 
gplotTwoWay(cell ~ ovalbumin*treatment, data = alveolar, type = "errorbar", option = "sd")

# to change factor places in graph
gplotTwoWay(cell ~ treatment*ovalbumin, data = alveolar, type = "errorbar", option = "sd")

# to obtain error bar (mean +- standard error) 
gplotTwoWay(cell ~ ovalbumin*treatment, data = alveolar, type = "errorbar", option = "se")

# to obtain box-and-whisker plot 
gplotTwoWay(cell ~ ovalbumin*treatment, data = alveolar, type = "boxplot")

# to obtain violin plot 
gplotTwoWay(cell ~ ovalbumin*treatment, data = alveolar, type = "violin")

# to define specific colors
gplotTwoWay(cell ~ ovalbumin*treatment, data = alveolar, type = "errorbar", option = "sd", 
color_manual = c("#999999", "#E69F00", "#56B4E9"))

# to change color palette
library(wesanderson)
gplotTwoWay(cell ~ ovalbumin*treatment, data = alveolar, type = "errorbar", option = "sd", 
color_manual = wes_palette(name = "GrandBudapest1", n = 3))

twowaytests documentation built on March 31, 2023, 9:26 p.m.