?grid
--- John Lande <[EMAIL PROTECTED]> wrote:
> dear all,
>
> I have a very simple question but I could not figure
> out.
>
> I need to make plots with grid in the background.
>
> something like I old retrive like this
>
> a=runif(100)*10
> b=runif(100)*10
> plot(a,b, pch=20, xlim=c(0, round(max(a))),
> ylim=c(0, round(max(b))))
> vs=seq(0, max(a), 0.5)
> for(i in 1:length(vs)){
> abline(v=vs[i], col="lightgrey")
> }
> hs=seq(0, max(b), 0.5)
> for(i in 1:length(hs)){
> abline(h=hs[i], col="lightgrey")
> }
> points(a, b, pch=20)
>
> as you can see it is not very convenient
>
> --
> john
>
> [[alternative HTML version deleted]]
>
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