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Last data update: 2014.03.03

R: Vertical or horizontal line.

geom_hvline

R Documentation

Vertical or horizontal line.

Description

This geom is based on the source code of ' geom_hline and geom_vline.

Usage

geom_hvline(mapping = NULL, data = NULL, position = "identity",
  show.legend = FALSE, ...)

Arguments

`mapping`	The aesthetic mapping, usually constructed with `aes` or `aes_string`. Only needs to be set at the layer level if you are overriding the plot defaults.
`data`	A layer specific dataset - only needed if you want to override the plot defaults.
`position`	The position adjustment to use for overlapping points on this layer
`show.legend`	should a legend be drawn? (defaults to `FALSE`)
`...`	other arguments passed on to `layer`. This can include aesthetics whose values you want to set, not map. See `layer` for more details.

Details

The goal is to determine the line to be either vertial or horizontal based on the 1-d data provided in this layer.

Value

a geom_hvline layer

Aesthetics

Sexpr[results=rd,stage=build]{ggplot2:::rd_aesthetics("geom", "vline")}

Examples

p <- ggplot(mtcars, aes(x = wt, y = mpg)) + geom_point()
# vline
p + geom_hvline(data = data.frame(wt= 3))
# hline
p + geom_hvline(data = data.frame(mpg= 20))

Results


R version 3.3.1 (2016-06-21) -- "Bug in Your Hair"
Copyright (C) 2016 The R Foundation for Statistical Computing
Platform: x86_64-pc-linux-gnu (64-bit)

R is free software and comes with ABSOLUTELY NO WARRANTY.
You are welcome to redistribute it under certain conditions.
Type 'license()' or 'licence()' for distribution details.

R is a collaborative project with many contributors.
Type 'contributors()' for more information and
'citation()' on how to cite R or R packages in publications.

Type 'demo()' for some demos, 'help()' for on-line help, or
'help.start()' for an HTML browser interface to help.
Type 'q()' to quit R.

> library(ggcyto)
Loading required package: ggplot2
Loading required package: flowCore
Loading required package: ncdfFlow
Loading required package: flowViz
Loading required package: lattice
Loading required package: RcppArmadillo
Loading required package: BH
Loading required package: flowWorkspace
Loading required package: gridExtra
> png(filename="/home/ddbj/snapshot/RGM3/R_BC/result/ggcyto/geom_hvline.Rd_%03d_medium.png", width=480, height=480)
> ### Name: geom_hvline
> ### Title: Vertical or horizontal line.
> ### Aliases: geom_hvline
> 
> ### ** Examples
> 
> p <- ggplot(mtcars, aes(x = wt, y = mpg)) + geom_point()
> # vline
> p + geom_hvline(data = data.frame(wt= 3))
> # hline
> p + geom_hvline(data = data.frame(mpg= 20))
> 
> 
> 
> 
> 
> dev.off()
null device 
          1 
>