[R] Add an arrow to a plot

[Bill.Venables at csiro.au]

It won't happen automatically unless you make it do so yourself.

Fortunately this is not hard.  See, 

?arrows

 

-----Original Message-----
From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org] On Behalf Of Trying To learn again
Sent: Wednesday, 28 July 2010 7:07 AM
To: r-help at r-project.org
Subject: [R] Add an arrow to a plot

Hi I want to plot an x,y plot something like an scatter plot.

I always have the same doubt, were is the last point of my file?

Imagine it is a time series so I want the last point to indicate with an
arrow (but athomatically if posible).

Someone knows if it is posible?

Could it be posible to add additional arrows (with a small square with
text?)

I hope you can comprehead me?

I suppose you will say: An arrow? Which width?size? I first need to see how
it looks and if it is posible.

Many thanks in advance¡¡¡

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