textplot2: textplot2 - An x y plot of non-overlapping text

In vulcan: VirtUaL ChIP-Seq data Analysis using Networks

Description

This function is an extension of the 'textplot' function from the 'wordcloud' package, with the extra functionality of specifiying the color of the points

Usage

textplot2(x, y, words, cex = 1, pch = 16, pointcolor = "#FFFFFF00",
  new = TRUE, show.lines = TRUE, ...)

Arguments

x	x coordinates
y	y coordinates
words	the text to plot
cex	font size
pch	pch parameter for the plotted points
pointcolor	a string specifying the color of the points (default #FFFFFF00)
new	should a new plot be created
show.lines	if true, then lines are plotted between x,y and the word, for those words not covering their x,y coordinates
...	Additional parameters to be passed to wordlayout and text.

Value

nothing

Examples

obj_names<-apply(expand.grid(LETTERS,LETTERS),1,paste,collapse='')
a<-setNames(runif(26*26),obj_names)
b<-setNames(rnorm(26*26),obj_names)
plot(a,b,pch=20,col='grey')
top<-names(sort(-a))[1:50]
textplot2(a[top],b[top],words=top,new=FALSE,pointcolor='black')

vulcan documentation built on Nov. 8, 2020, 8:15 p.m.