ggplot2.histogram: Easy histogram plot with R package ggplot2

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

Description

Easy histogram plot with R package ggplot2

Usage

ggplot2.histogram(data, xName = NULL, groupName = NULL,
  position = c("identity", "stack", "dodge"), addMeanLine = FALSE,
  meanLineColor = NULL, meanLineType = "dashed", meanLineSize = 1,
  addDensityCurve = FALSE, densityFill = "#FF6666", densityAlpha = 0.2,
  densityLineType = "solid", densityLineColor = "#2F2F2F",
  scale = c("frequency", "density"), groupColors = NULL,
  brewerPalette = NULL, fill = "black", color = "black",
  linetype = "solid", ...)

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.
position	Change the position adjustment to use for overlapping points on the layer. Possible values for the argument position is "identity", "stack", "dodge". Default value is identity.
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.
addDensityCurve	If true, add density curve. Default value is FALSE.
densityFill	The fill color of density plot. The value is considered only when groupName=NULL. If groupName is specified, density curves are colored according groupColors pr brewerPalette.
densityAlpha	Degre of transparency of overlaid colors for density curves. Default is 0.2 (20%).
densityLineType, densityLineColor	Line type and color for density curve.
scale	Indicate whether y axis values are density or frequency. Default value is frequency.
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".
linetype, fill, color	linetype, outline and fill colors
...	Other arguments passed on to ggplot2.customize custom function or to geom_histogram and 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.density

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

YTLogos/easyGgplot2 documentation built on May 3, 2019, 9:03 p.m.