Automatic breaks for numeric axes

Uses Wilkinson's extended breaks algorithm as implemented in the labeling package.

Usage

breaks_extended(n = 5, ...)

Arguments

n

Desired number of breaks. You may get slightly more or fewer breaks that requested.

...

other arguments passed on to labeling::extended()

References

Talbot, J., Lin, S., Hanrahan, P. (2010) An Extension of Wilkinson's Algorithm for Positioning Tick Labels on Axes, InfoVis 2010 http://vis.stanford.edu/files/2010-TickLabels-InfoVis.pdf.

Examples

demo_continuous(c(0, 10))
#> scale_x_continuous()

demo_continuous(c(0, 10), breaks = breaks_extended(3))
#> scale_x_continuous(breaks = breaks_extended(3))

demo_continuous(c(0, 10), breaks = breaks_extended(10))
#> scale_x_continuous(breaks = breaks_extended(10))