"Jan Verbesselt" <[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]
Dear R-helpers,
Is it possible to create a type of 'movie' in R based on the output of
several figures (e.g., jpegs) via the plot() function. I obtained dynamic
results with the plotting function and would like to save these as a movie
(e.g., avi or other formats)?
1) You can create animated GIFs with the caTools package.
2) ImageMagick (clipped from R-Help)
It is quite easy to do with ImageMagick (www.imagemagick.org), which can be
installed on most OSes. I tried this simple sequence and it worked
beautifully.
In R:
> for(i in 1:5) {
+ jpeg(paste("fig", i, ".jpg", sep = ""))
+ hist(rnorm(100))
+ dev.off()
+ }
Then from the command line (I tried it using Linux, though it should be the
same on any platform):
% convert -delay 50 -loop 50 fig*.jpg animated.gif
This created animated.gif, a nice animation of my sequence of files. You
can control the timing of the animation by playing with -delay and -loop.
3) TCL/TK Animation (clipped from R-Help)
The tcltk package also has ways of doing this kind of stuff:
library(tcltk)
f <- function(){plot(rnorm(1000)); tkcmd("after", 1000,f)}
f()
(To stop, set f <- NULL)
efg
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