scale_size_area: Scale area instead of radius, for size.
Description
When scale_size_area
is used, the default behavior
is to scale the area of points to be proportional to the
value.Usage
scale_size_area(..., max_size = 6)
Arguments
...
Other arguments passed on to
continuous_scale
to control name, limits,
breaks, labels and so forth. max_size
Size of largest points.
Details
Note that this controls the size scale, so it will also
control the thickness of lines. Line thickness will be
proportional to the square root of the value, which is
probably undesirable in most cases.