labeling (version 0.3)

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

Description

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

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

References

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