output slot.reactivePlot(func, width = "auto", height = "auto", ...)'auto' to use the offsetWidth of the
HTML element that is bound to this plot. You can also
pass in a function that returns the width in pixels or
'auto'; in the 'auto' to use the offsetHeight of the
HTML element that is bound to this plot. You can also
pass in a function that returns the width in pixels or
'auto'; in thpng. These can be used to set
the width, height, background color, etc.div or
img and have the CSS class name
shiny-plot-output. For output, it will try to use the following devices, in
this order: quartz (via png),
then CairoPNG, and finally
png. This is in order of quality
of output. Notably, plain png output on Linux and
Windows may not antialias some point shapes, resulting in
poor quality output.