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Suppose I create a multiple plot with zoo, using: index <- ISOdatetime(2004, rep(1:2, 5), sample(28, 10), 0, 0, 0) foo <- zoo(rnorm(10), index) for (i in 1:9) { data <- rnorm(10) z1 <- zoo(data, index) foo <- cbind(foo, z1) } plot(foo) This creates 10 plots on one device, one for each column in foo. Now I want to go back and use abline to draw a line at the mean on each of

...ut the specific plot you are drawing. We will need to see a reproducible example to say more. Rich ---- Original message ---- >Date: Fri, 16 Mar 2007 19:37:14 -0400 >From: Duncan Murdoch <murdoch at stats.uwo.ca> >Subject: Re: [R] CPU usage on Windows >To: Jonathan Wang <jontwang at gmail.com> >Cc: r-help at stat.math.ethz.ch > >On 3/16/2007 6:56 PM, Jonathan Wang wrote: >> I'm using R with emacs & ESS on Windows. When I create a plot, sometimes R >> will seem to get stuck in a busy loop, i.e. it will use 100% of my CPU. >> >> Ha...

I'm using R with emacs & ESS on Windows. When I create a plot, sometimes R will seem to get stuck in a busy loop, i.e. it will use 100% of my CPU. However the system is still somewhat responsive, and the problem usually goes away if I create a new device with windows(). If I then close this device, making the first device active again, sometimes R will get stuck in the busy loop again.