[R] xyplot lattice fine control of axes limits and thick marks (with log scale)

[ilai]

On Thu, Mar 29, 2012 at 3:04 AM, maxbre <mbressan at arpa.veneto.it> wrote:

<snip>

> To answer your question:
> - I did not put relation=’same’ because that is not what I want: i.e **for
> each single panel** (in my case 4) I want to set the same limits for both x
> and y axes (I want the diagonal line exactly bisect each panel); see what
> happen by putting relation=’same’…(I do not want to group the panels by a
> single x and y axes)
> - I need to set the same number of thick arks for both x and y axes *of each
> panel*, but with log scale it’s quite tricky at least seems so to myself)

Oh. I missed the *for each panel* aspect of your question. I believe
you are 5 key strokes away (the change is to prepanel). Is this what
you want ?

    xyplot(tv ~ ms | sub_family, data=tm,
      #as.table=TRUE,
      aspect="xy",
      xlab = expression(paste('ms [ fg/', m^3, ' ]', sep = '')),
      ylab = expression(paste('tv [ fg/', m^3, ' ]', sep = '')),
      scales= list(x=list(relation="free", log=10, cex=0.8),
                   y=list(relation="free", log=10, cex=0.8)),
      prepanel = function(x, y, subscripts) {
        rr<- range(cbind(x,y))
        list(xlim = rr, ylim= rr)
      },
      panel = function(x, y ,subscripts,...) {
        panel.xyplot(x, y, cex=0.8,...)
        panel.abline(a = 0, b = 1, lty = 2, col ="gray")
        panel.text(x, y, labels=tm$name_short[subscripts], cex = 0.8,
pos=3, offset=0.5, srt=0, adj=c(1,1))
      },   subscripts=TRUE,
      xscale.components = xscale.components.logpower,
      yscale.components = yscale.components.logpower
      )

Cheers


>
> Thanks for your help
>
> max
>
>
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