摘要:For R version 2.0.0, a number of basic graphics facilities
have been added to allow finer control of
fonts, line styles, and transparency in R graphics.
At the user level, these changes involve the addition
of graphical parameters in the graphics and
grid (Murrell, 2002) packages for specifying fonts
and line styles, and, in the grDevices package, some
new functions for controlling font specifications and
changes to some existing functions for specifying
semitransparent colours. Summaries of the changes
to the user interface and the availability of the
changes on the standard devices are given in Tables
2 and 3 at the end of the article.