[R] Filling graphic objects

ripley@stats.ox.ac.uk ripley at stats.ox.ac.uk
Wed Mar 12 13:13:00 CET 2003

On Wed, 12 Mar 2003, p.b.pynsent wrote:

> I have used polygon() to mark the confidence limits of a survival curve.
> In another project, I have used the col parameter to fill my boxplots.
> The poly() description refers to  filling but actually produces 

Did you mean polygon()?

> hatching (i.e. lines ).
> boxplot() does truly fill the boxes with a colour or shades of grey 
> (e.g. col="red").
> My novices perception of R graphics is:
> If you can hatch it, you cannot fill it.
> If you can fill it you cannot hatch it.
> Is this correct or is there  a way of hatching my boxplots and filling 
> my polygons?

You can fill polygons or rectangles (rect()) by giving `col' and not
giving `density'.

You cannot AFAICS hatch boxplots using the existing code: they are
conventionally not filled or filled in light grey.

Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

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