[R] (no subject)

Prof Brian Ripley ripley at stats.ox.ac.uk
Sun Sep 14 11:34:54 CEST 2003

On Sun, 14 Sep 2003 huan.huang at bnpparibas.com wrote:

> I was using png() last week and also found it was very slow. But if you

If it is `very slow', there is a problem with your hardware.  On my very 
modest laptop

> system.time({png();plot(rnorm(100));dev.off()})
[1] 0.24 1.99 2.39   NA   NA
> system.time({bitmap("foo.png");plot(rnorm(100));dev.off()})
[1] 1.18 4.31 6.42   NA   NA

so I am puzzled by the original claim, too.

> try:
> win.metafile('C:/temp/filename.png', width = 9, height = 10)
> plot(rnorm(100))
> dev.off()
> It will speed up quite a lot. But one thing I don't understand is I

It will not be a png plot, though, so what is the point of that?
You cannot open it in a real Web browser and I can only presume that you 
did not try to do so.

Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

More information about the R-help mailing list