png(
image = NULL,
filename = NULL,
width = 480,
height = 480,
units = "px",
pointsize = 12,
bg = "white",
res = NULL,
family = "",
restoreConsole = TRUE,
type = ['cairo','cairo-png'],
antialias = TRUE,
symbolfamily = "default",
... = NULL);
filename
the 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.)
width
the width of the device. [as integer]
height
the height of the device. [as integer]
units
The units in which height and width are given. Can be px (pixels,
the default), in (inches), cm or mm.
pointsize
the default pointsize of plotted text, interpreted as big
points (1/72 inch) at res ppi. [as double]
bg
the initial background colour: can be overridden by setting par("bg").
res
The 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.
family
A 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.
restoreConsole
See the ‘Details’ section of windows. For type == "windows"
only. [as boolean]
type
Should be plotting be done using Windows GDI or cairographics?
antialias
Length-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. [as boolean]
kind.