calibrate (version 1.7.7)

textxy: Nice placement of labels in a plot

Description

Function textxy calls function text in order to add text to points in a graph. 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

X

x coordinates of a set of points

Y

y coordinates of a set of points

labs

labels to be placed next to the points

m

coordinates of the origin of the plot (default (0,0))

cex

character expansion factor

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

…

additiona arguments for function text.

Value

NULL

References

Graffelman, J. (2006) A guide to biplot calibration.

See Also

text

Examples

# NOT RUN {
x <- rnorm(50)
y <- rnorm(50)
plot(x,y,asp=1)
textxy(x,y,1:50,m=c(mean(x),mean(y)))
# }