[R] problem with origin of a plot

[David Winsemius]

On Jan 20, 2010, at 6:42 AM, jpardila wrote:

>
> Dear list,
> I have somewhat a small problem with a plot in  R. I want to produce  
> a plot
> with the two axis intersection being the exact values of ( 5,6).
>
> The code i am using is"
>
> BN<- 
> c 
> (14.95,9.03,10.42,9.3,9.52,7.73,6.35,6.73,5.54,5.42,6.24,5.98,6.21,5.83,7.14,5.79,5.57,7.43,9.19,10.17,9.79,9.56,9.87,9.33,10.56,10.08,9.49,8.49,7.34,6.14,5.98,7.27,5.56 
> ,
> 7.3,6.14,6.37,5.14,5.53,5.64,6.55,7.04,9.41,9.59,9.92,10.77,9.77,10.26,8.71,8.91,9.7 
> )
>
> plot(BN, xlim=c(5,10),ylim=c(6,14))
>
> When I input this code the origin of the plot is a few units before  
> 5 and 6
> but not exactly 5,6.

4% to be precise.

> I guess there is a parameter that i have to modify in
> par or plot options but I haven't figure it out yet.

?par

Try:
plot(BN, xlim=c(5,10),ylim=c(6,14), yaxs="i", xaxs="i")


>
> Please help.
>
> -- 
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>
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David Winsemius, MD
Heritage Laboratories
West Hartford, CT