From: Hu Chen <chencheva_at_gmail.com>

Date: Thu 16 Jun 2005 - 11:12:02 EST

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 Thu Jun 16 11:16:57 2005

Date: Thu 16 Jun 2005 - 11:12:02 EST

On 6/15/05, Jim Brennan <jfbrennan@rogers.com> wrote:

> This is one way not so good

*> R>X<-rnorm(1000000)
**> R>X0<-.899
**> R>plot(density(X))
**> R>abline(v=X0)
**>
**> A better way
**>
**> R>x<-seq(-5,5,.01)
**> R>plot(x,dnorm(x))
**> R>plot(x,dnorm(x),type="l",col=2)
**> R>abline(v=X0,col=4)
**> R>?text
**> R>text(X0,.2,paste("P(X<X0) =",signif(pnorm(X0),3)),pos=2)
**> R>abline(v=X0,col=4)
**>
**> If you actually want arrows do ?arrows
**> Jim
**>
**> -----Original Message-----
**> From: r-help-bounces@stat.math.ethz.ch
**> [mailto:r-help-bounces@stat.math.ethz.ch] On Behalf Of Hu Chen
**> Sent: June 15, 2005 10:41 AM
**> To: R
**> Subject: [R] how to plot density distribution with a arrow pointer?
**>
**> Hi all,
**> for example:
**> > X<- rnorm(1000)
**> > X0 <- 0.899
**>
**> I want to draw a density distribution plot with a arrow pointer
**> indicating the position of X0, meanwhile, giving out the p-value.
**>
**> any functions?
**>
**> Thanks very much.
**>
**> ______________________________________________
**> 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
**>
**>
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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 Thu Jun 16 11:16:57 2005

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