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rasterpdf is an R package to plot raster graphics in PDF
files. This can be useful when one needs multipage documents, but the
plots contain so many individual elements that use of vector graphics
(with grDevices::pdf()) results in inconveniently large
file sizes. Internally, rasterpdf plots each individual
page as a PNG, and then combines them in one PDF file.
rasterpdf can be installed from CRAN with:
install.packages("rasterpdf")Or the development version from GitHub with:
devtools::install_github("ilarischeinin/rasterpdf")rasterpdf’s main function raster_pdf() can
be used as any graphics device in R:
library(rasterpdf)
raster_pdf("Rplots.pdf")
plot(iris)
image(volcano)
plot(EuStockMarkets)
dev.off()Or similarly with ggplot2:
library(ggplot2)
library(rasterpdf)
raster_pdf("diamonds.pdf")
ggplot(diamonds, aes(carat, price)) + geom_point()
ggplot(diamonds, aes(carat, price, colour = color)) + geom_point()
ggplot(diamonds, aes(carat, price, colour = clarity)) + geom_point()
dev.off()The output size and resolution can be set with parameters
width, height, units, and
res. The default is 7 x 7 inches and 72 ppi. Any other
parameters (...) are passed through to the PNG device
function. By default this is grDevices::png(), but another
function can also be specified, such ragg::agg_png(). The
PDF file is by default generated with
grDevices::cairo_pdf() if cairo is available, and
grDevices::pdf() otherwise. Here again it is also possible
to specify another function.
These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.
Health stats visible at Monitor.