I have been using the following so far without having any problems:

dev.copy(png,"sample.png",width=8, height=10, units="in",res=500)
dev.off()




On Tue, Apr 16, 2013 at 6:32 PM, <jtang@mappi.helsinki.fi> wrote:

> Hi,
> I want to save a plot in the windows device as png and the default
> resolution is 72dpi. Is it possible to increase the default resolution to
> for example 300 dpi?
> I have thought of using function png(..., res=300), but the problem is
> that the figure produced this way looks different than the one shown in the
> windows device. One notable difference is the missing of some ticks in the
> x axis. Therefore I would rather to produce the figure in a window device
> and then save it as a png. Unfortunately in the device window there is no
> such an option to change the resolution.
> Little information can be found so far. Any ideas are appreciated!
>
> Best,
> Jing
>
> ______________________________**________________
> R-help@r-project.org mailing list
> https://stat.ethz.ch/mailman/**listinfo/r-help<https://stat.ethz.ch/mailman/listinfo/r-help>
> PLEASE do read the posting guide http://www.R-project.org/**
> posting-guide.html <http://www.R-project.org/posting-guide.html>
> and provide commented, minimal, self-contained, reproducible code.
>

	[[alternative HTML version deleted]]

