# labeling-package: Axis labeling In labeling: Axis Labeling

 labeling-package R Documentation

## Axis labeling

### Description

Functions for positioning tick labels on axes

### Details

 Package: labeling Type: Package Version: 0.4.3 Date: 2023-08-29 License: Unlimited LazyLoad: yes

Implements a number of axis labeling schemes, including those compared in An Extension of Wilkinson's Algorithm for Positioning Tick Labels on Axes by Talbot, Lin, and Hanrahan, InfoVis 2010.

### Author(s)

Justin Talbot justintalbot@gmail.com

### References

Heckbert, P. S. (1990) Nice numbers for graph labels, Graphics Gems I, Academic Press Professional, Inc. Wilkinson, L. (2005) The Grammar of Graphics, Springer-Verlag New York, Inc. Talbot, J., Lin, S., Hanrahan, P. (2010) An Extension of Wilkinson's Algorithm for Positioning Tick Labels on Axes, InfoVis 2010.

`extended`, `wilkinson`, `heckbert`, `rpretty`, `gnuplot`, `matplotlib`, `nelder`, `sparks`, `thayer`, `pretty`

### Examples

``````heckbert(8.1, 14.1, 4)	# 5 10 15
wilkinson(8.1, 14.1, 4)	# 8 9 10 11 12 13 14 15
extended(8.1, 14.1, 4)	# 8 10 12 14
# When plotting, extend the plot range to include the labeling
# Should probably have a helper function to make this easier
data(iris)
x <- iris\$Sepal.Width
y <- iris\$Sepal.Length
xl <- extended(min(x), max(x), 6)
yl <- extended(min(y), max(y), 6)
plot(x, y,
xlim=c(min(x,xl),max(x,xl)),
ylim=c(min(y,yl),max(y,yl)),
axes=FALSE, main="Extended labeling")
axis(1, at=xl)
axis(2, at=yl)
``````

labeling documentation built on Aug. 30, 2023, 1:07 a.m.