Find an empty space on a plot
Try to find the largest empty rectangle on a plot.
emptyspace(x,y=NULL)
x,y |
x and y positions of the points on the plot. |
emptyspace searches the pairs of points on the plot to find the largest rectangular space within which none of the points lie. It does not guarantee that the space will be large enough to fit a legend or text.
Two alternatives are the largest.empty function in the Hmisc package and the maxEmptyRect function. While maxEmptyRect will generally outperform emptyspace, emptyspace will sometimes find a slightly smaller, but "squarer" rectangle.
The x and y coordinates of the center of the rectangle found.
Ray Brownrigg
x<-rnorm(100) y<-rnorm(100) plot(x,y,main="Find the empty space",xlab="X",ylab="Y") es<-emptyspace(x,y) # use a transparent background so that any overplotted points are shown boxed.labels(es,labels="Here is the\nempty space",bg="transparent")
Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.