Compute an appealing set of ticks that encompass the data.
ticks: A fixed array of ticks, or
nothingto indicate they should be computed.
granularity_weight: Importance of having a reasonable number of ticks. (Default:
simplicity_weight: Importance of including zero. (Default:
coverage_weight: Importance of tightly fitting the span of the data. (Default:
niceness_weight: Importance of having a nice numbering. (Default:
All x-axis aesthetics are considered, and ticks are output to the
# Providing a fixed set of ticks plot(x=rand(10), y=rand(10), Stat.xticks(ticks=[0.0, 0.1, 0.9, 1.0]), Geom.point)