thx so much, Marc.

ej

On 9/14/06, Marc Schwartz <MSchwartz@mn.rr.com> wrote:
>
> On Thu, 2006-09-14 at 19:37 -0400, Ethan Johnsons wrote:
> > A quick question, please.
> >
> > x = c(0.0001, 0.0059, 0.0855, 0.9082)
> > y = c(0.54, 0.813, 0.379, 0.35)
> >
> > where A = 1st set, B = 2nd set, C = 3rd set, D = 4th set respectivley.
> >
> > How do you make hist plot side by side for x & y?
> >
> > i.e. 0.0001 and then to the right 0.54, 0.0059 and then to the right
> 0.813,
> > etc.
> >
> > thx much
>
> You don't want a histogram, but a barplot:
>
> x <- c(0.0001, 0.0059, 0.0855, 0.9082)
> y <- c(0.54, 0.813, 0.379, 0.35)
>
> # create a two row matrix with x and y
> height <- rbind(x, y)
>
> # Use height and set 'beside = TRUE' to get pairs
> # save the bar midpoints in 'mp'
> # Set the bar pair labels to A:D
> mp <- barplot(height, beside = TRUE, ylim = c(0, 1),
>                names.arg = LETTERS[1:4])
>
> # Draw the bar values above the bars
> text(mp, height, labels = format(height, 4), pos = 3, cex = .75)
>
>
> See ?barplot, ?text and ?format (or ?formatC or ?sprintf).
>
> HTH,
>
> Marc Schwartz
>
>
>

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