extended
is an enhanced version of Wilkinson's
optimization-based axis labeling approach. It is
described in detail in our paper. See the references.
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))
vector of axis label locations
minimum of the data range
maximum of the data range
number of axis labels
set of nice numbers
if true, the extreme labels will be outside the data range
weights applied to the four optimization components (simplicity, coverage, density, and legibility)
Justin Talbot justintalbot@gmail.com
Talbot, J., Lin, S., Hanrahan, P. (2010) An Extension of Wilkinson's Algorithm for Positioning Tick Labels on Axes, InfoVis 2010.