filenamethe path of the output file, up to 511 characters. The
page number is substituted if a C integer format is included in the
character string, as in the default, and tilde-expansion is
performed (see path.expand). (The result must be less than
600 characters long. See postscript for further
details.)
unitsThe units in which height and width are
given. Can be px (pixels, the default), in (inches),
cm or mm.
pointsizethe default pointsize of plotted text, interpreted as
big points (1/72 inch) at res ppi.
bgthe initial background colour: can be overridden by setting
par("bg").
resThe nominal resolution in ppi which will be recorded in the
bitmap file, if a positive integer. Also used for units other than
the default. If not specified, taken as 72 ppi to set the size of
text and line widths.
familyA length-one character vector specifying the default
font family. The default means to use the font numbers on the
Windows GDI versions and "sans" on the cairographics
versions.
restoreConsoleSee the ‘Details’ section of
windows. For type == "windows" only.
antialiasLength-one character vector.
For allowed values and their effect on fonts with type =
"windows" see windows: for that type if the
argument is missing the default is taken from
windows.options()$bitmap.aa.win.
For allowed values and their effect (on fonts and lines, but not
fills) with type = "cairo" see svg.
symbolfamily For cairographics only:
a length-one character string that specifies the font family to
be used as the "symbol" font (e.g., for plotmath output).
The default value is "default", which means that R will choose
a default "symbol" font based on the graphics device capabilities.