ggplot2.density: Easy density plot with R package ggplot2

In kassambara/easyGgplot2: Perform and customize easily a plot with ggplot2

Description

Easy density plot with R package ggplot2

Usage

ggplot2.density(data, xName = NULL, groupName = NULL, addMeanLine = FALSE,
  meanLineColor = NULL, meanLineType = "dashed", meanLineSize = 1,
  densityFill = NULL, fillGroupDensity = FALSE,
  colorGroupDensityLine = FALSE, groupColors = NULL, brewerPalette = NULL,
  ...)

Arguments

data	data.frame or a numeric vector. Columns are variables and rows are observations.
xName	The name of column containing x variable (i.e groups). Default value is NULL.
groupName	The name of column containing group variable. This variable is used to color plot according to the group.
addMeanLine	if TRUE, the mean line is added on the plot for each group. Default value is FALSE.
meanLineColor, meanLineType, meanLineSize	mean line color, type and size.
densityFill	Fill color of density plot. This is only considered when groupName=NULL.
fillGroupDensity	If TRUE, density curve of each group is filled. Default value is FALSE.
colorGroupDensityLine	If TRUE, density curve line are colored. Default value is FALSE.
groupColors	Color of groups. groupColors should have the same length as groups.
brewerPalette	This can be also used to indicate group colors. In this case the parameter groupColors should be NULL. e.g: brewerPalette="Paired".
...	Other arguments passed on to ggplot2.customize custom function or to geom_density functions from ggplot2 package.

Value

a ggplot

Author(s)

Alboukadel Kassambara <[e-mail]>

References

http://www.sthda.com

See Also

ggplot2.dotplot, ggplot2.violinplot, ggplot2.stripchart, ggplot2.boxplot, ggplot2.histogram

Examples

#data
set.seed(1234)
df <- data.frame(grp = factor( rep(c("A","B"), each=200) ),
                   var = c(rnorm(200),rnorm(200, mean=.8)))

#plot
ggplot2.density(data=df, xName='var',groupName='grp', groupColors=c('#999999','#E69F00'),
                mainTitle="Plot of variable histogram \nper group",
                xtitle="Variable", ytitle="Density")

#Or use this
plot<-ggplot2.density(data=df, xName='var',groupName='grp', groupColors=c('#999999','#E69F00'))
plot<-ggplot2.customize(plot, mainTitle="Plot of variable histogram \nper group",
                        xtitle="Variable", ytitle="Density")
print(plot)

kassambara/easyGgplot2 documentation built on May 20, 2019, 7:39 a.m.