[R] Add text/numbers to x axis?

[Petr Pikal]

Hi

maybe something like

> plot(1:10,1:10, axes=F)
> axis(1, at=1:10, labels=c((1:7)/10, "c", 9:10))
> axis(2, at=1:10, labels=c(letters[1:5], 6:10))
> box()
>
HTH
Petr


On 30 May 2006 at 14:45, Robert Lundqvist wrote:

To:             	r-help at stat.math.ethz.ch
From:           	Robert Lundqvist <Robert.Lundqvist at ltu.se>
Date sent:      	Tue, 30 May 2006 14:45:41 +0200
Subject:        	[R] Add text/numbers to x axis?
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> Is there any simple way to add text to the x axis in R? I have tried
> to add simple characters in R without any greater sucess. As an
> example of what I want to do is the added C in the following "dumb"
> plot (produced with MacAnova using the option "dumb:T"):
> 
>     ++------+-------+------+-------+------+-------+------+-------++
>    1+                              :                             *+
>     |                              :                       *  *   | | 
>                                 :                 *  *         | |    
>                              :              *  .            |
>  0.8+                              :           *     .            +
>     |                              :                 .            | | 
>                                 :        *        .            | |    
>                              :     *           .            |
>  0.6+                              :                 .            +
>     |                              :  *              .            | | 
>                                 *                 .            | |    
>                              :                 .            | |       
>                        *  :                 .            |
>  0.4+                              :                 .            +
>     |                        *     :                 .            | | 
>                        *        :                 .            | |    
>                              :                 .            |
>  0.2+                  *           :                 .            +
>     |               *              :                 .            | | 
>            *  *                 :                 .            | |*  *
>      *                       :                 .            |
>    0++------+-------+------+-------+------+-------+--.---+-------++
>     -2    -1.5     -1    -0.5      0     0.5      1  C  1.5      2
> 
> 
> My attempts to use locator() and text() in R's plot() has not been
> working as good as expected. Never really knows where the added
> symbols end up...
> 
> BTW, anyone who knows how such "dumb" plots could be achieved in R?
> This option is avaliable in S, so a port to R shouldn't be impossible,
> should it? Don't know how to do it myself however...
> 
> Robert
> 
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Petr Pikal
petr.pikal at precheza.cz