From: Jim Lemon <bitwrit_at_ozemail.com.au>

Date: Wed 25 May 2005 - 05:06:41 EST

library(plotrix)

plot(y1,ylim=c(0,10),axes=FALSE,main="Big range plot",ylab="Y values") points(y2)

points(y3)

box()

axis(2,at=c(1,2,3,4,6,7,8,9),labels=c("1","2","3","4","396","397","398","399")) axis.break(2,5)

par(new=TRUE)

plot(y4,ylim=c(390,400),axes=FALSE,main="",ylab="",xlab="")

R-help@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 Received on Tue May 24 19:06:32 2005

Date: Wed 25 May 2005 - 05:06:41 EST

Bo Peng wrote:

> Dear list,

*>
**> I need to plot four almost horizontal lines with y-values around
**> 1,3,4, 400. If I plot them directly, the first three lines will be
**> indiscernible so I am thinking of breaking y-axis into two parts, one
**> with range (0,5), another (395,400). Is there an easy way to do this?
**>
**> I can think of two ways:
**> 1. use two plots and draw axes manually. The plot margins, are however
**> difficult to adjust.
**> 2. use one plot, adjust y-values of the lines and draw y-axis
**> manually. But, how would I break y-axis and add separation symbols
**> *on* yaxis? (By separation symbol, I mean something like
**> ------//------
**>
*

Hi Bo,

y1<-1+rnorm(10)/5 y2<-3+rnorm(10)/5 y3<-4+rnorm(10)/5 y4<-397+rnorm(10)/5

library(plotrix)

plot(y1,ylim=c(0,10),axes=FALSE,main="Big range plot",ylab="Y values") points(y2)

points(y3)

box()

axis(2,at=c(1,2,3,4,6,7,8,9),labels=c("1","2","3","4","396","397","398","399")) axis.break(2,5)

par(new=TRUE)

plot(y4,ylim=c(390,400),axes=FALSE,main="",ylab="",xlab="")

Jim

R-help@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 Received on Tue May 24 19:06:32 2005

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