Hi,
I have a problem when I want to add new points (or a
new line) to the graph. Some points (or parts of the
line) are not shown on the graph because they lie
beyond the scale of the axis. Is there a way to
overcome this so all points (or the entire line) are
shown on the graph? Here's an example of my problem:
colors = c("red", "blue")
plot(x=rnorm(100,0,1), y=runif(100), type="p", pch=21,
col = colors[1])
# if I add these points not all of them are shown on
the graph
lines(x=rnorm(100,3,1), y=runif(100), type="p",
pch=24, col = colors[2])
Thanks in advance,
Martin
On 12/29/05 5:19 PM, "Martin Lam" <tmlammail at yahoo.com> wrote:> Hi, > > I have a problem when I want to add new points (or a > new line) to the graph. Some points (or parts of the > line) are not shown on the graph because they lie > beyond the scale of the axis. Is there a way to > overcome this so all points (or the entire line) are > shown on the graph? Here's an example of my problem: > > colors = c("red", "blue") > > plot(x=rnorm(100,0,1), y=runif(100), type="p", pch=21, > col = colors[1]) > > # if I add these points not all of them are shown on > the graph > lines(x=rnorm(100,3,1), y=runif(100), type="p", > pch=24, col = colors[2])You will need to use something like max and min for ALL of your x and y values and then set your own ylim and xlim for the plot. xold <- rnorm(100,0,1) yold <- runif(100) xnew <- rnorm(100,3,1) ynew <- runif(100) plot(xold,yold,xlim=c(min(c(xold,xnew)),max(c(xold,xnew))), ylim=c(min(c(yold,ynew)),max(c(yold,ynew)))) lines(xold,yold,type='p') This isn't tested, but I hope you get the idea. Sean
Another approach to what has already been suggested is to use 'matplot' (as in matrix plot). Patrick Burns patrick at burns-stat.com +44 (0)20 8525 0696 http://www.burns-stat.com (home of S Poetry and "A Guide for the Unwilling S User") Martin Lam wrote:>Hi, > >I have a problem when I want to add new points (or a >new line) to the graph. Some points (or parts of the >line) are not shown on the graph because they lie >beyond the scale of the axis. Is there a way to >overcome this so all points (or the entire line) are >shown on the graph? Here's an example of my problem: > >colors = c("red", "blue") > >plot(x=rnorm(100,0,1), y=runif(100), type="p", pch=21, >col = colors[1]) > ># if I add these points not all of them are shown on >the graph >lines(x=rnorm(100,3,1), y=runif(100), type="p", >pch=24, col = colors[2]) > >Thanks in advance, > >Martin > >______________________________________________ >R-help at stat.math.ethz.ch mailing list >https://stat.ethz.ch/mailman/listinfo/r-help >PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html > > > > >