Learn R Programming

labeling (version 0.1)

extended: An Extension of Wilkinson's Algorithm for Position Tick Labels on Axes...

Description

An Extension of Wilkinson's Algorithm for Position Tick Labels on Axes

Usage

extended(dmin, dmax, m, Q=c(1, 5, 2, 2.5, 4, 3), only.loose=FALSE, w=c(0.25,
    0.2, 0.5, 0.05))

Arguments

dmin
minimum of the data range
dmax
maximum of the data range
m
number of axis labels
Q
set of nice numbers
only.loose
if true, the extreme labels will be outside the data range
w
weights applied to the four optimization components (simplicity, coverage, density, and legibility)

Value

  • vector of axis label locations

Details

extended is an enhanced version of Wilkinson's optimization-based axis labeling approach. It is described in detail in our paper. See the references.

References

Talbot, J., Lin, S., Hanrahan, P. (2010) An Extension of Wilkinson's Algorithm for Positioning Tick Labels on Axes, InfoVis 2010.