1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
|
\name{textxy}
\alias{textxy}
\title{ Nice placement of labels in a plot}
\description{
Function \code{textxy} calls function \code{text} in order to add text
to points in a graph. \code{textxy} chooses a different position
for the text depending on the quadrant. This tends to
produces better readable plots, with labels fanning away from the origin.
}
\usage{
textxy(X, Y, labs, m = c(0, 0), cex = 0.5, offset = 0.8, ...)
}
\arguments{
\item{X}{x coordinates of a set of points}
\item{Y}{y coordinates of a set of points}
\item{labs}{labels to be placed next to the points}
\item{m}{coordinates of the origin of the plot (default (0,0))}
\item{cex}{character expansion factor}
\item{offset}{controls the distance between the label and the point. A
value of 0 will plot labels on top of the point. Larger values give
larger separation between point and label. The default value is 0.8}
\item{\dots}{additiona arguments for function \code{text}.}
}
\value{
NULL
}
\references{ Graffelman, J. (2006) A guide to biplot calibration. }
\author{ Jan Graffelman (jan.graffelman@upc.edu) }
\seealso{ \code{\link{text}} }
\examples{
x <- rnorm(50)
y <- rnorm(50)
plot(x,y,asp=1)
textxy(x,y,1:50,m=c(mean(x),mean(y)))
}
\keyword{aplot}
\keyword{misc}
|
