Re: [R] horizontal and vertical line with arrow in a plot

From: Peter Alspach <Peter.Alspach_at_plantandfood.co.nz>
Date: Fri, 04 Jun 2010 15:43:42 +1200

Tena koe Roslina

?arrows

HTH .... Peter Alspach

> -----Original Message-----
> From: r-help-bounces_at_r-project.org [mailto:r-help-bounces_at_r-
> project.org] On Behalf Of Roslina Zakaria
> Sent: Friday, 4 June 2010 3:34 p.m.
> To: r-help_at_r-project.org
> Subject: [R] horizontal and vertical line with arrow in a plot
>
> Hi r-users,
>
> I would like to add a plot of vertical line segment with arrow from
> (77,.6) to (77,0) and also a horizontal  line segment with arrow from
> (0,0.6) to (77,.6) .  So far this is what I have:
>
> plot(sq, cdf, type="l", lwd=4,col="blue",xaxs="i",yaxs="i", xlab=
> "Rainfall (mm)", ylab= "Random no.", main="Random number  and rainfall
> totals (mm)")
> abline(v=77,h=0.6,col=2,lwd=2,lty=3)
> text(120,0.63, "r = 0.6")
> text(120,0.05, "x = 70")
>
> I also tried to use the 'diagram' and 'shape' package but not really
> sure how to use them.
>
> Thank you for all the help given.
>
>
>
> [[alternative HTML version deleted]]



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