geom_errorbarh width doesn't seem to have an effect

[MC]

I would like to get the same effect at the ends of the error bar with
geom_errorbarh that I get with geom_errorbar.

I use the following code to generate the data:

n <- 20;
y <- rep(NA,n);
x <- rep(NA,n);
ystd <- rep(NA,n);
xstd <- rep(NA,n);
ywt <- rep(NA,n);
xwt <- rep(NA,n)

for (j in 1:20){
c <- floor(runif(1,min=6,max=25));
yt <- runif(c,min=1,max=100);
xtt <- 2*yt;

yt <- yt + rnorm(c,sd=15);
xt <- xtt + rnorm(2*c,sd=15);

y[j] <- mean(yt);
x[j] <- mean(xt);

ystd[j] <- sd(yt);
xstd[j] <- sd(xt);

ywt[j] <- c;
xwt[j] <- 2*c;
}

then I use the following code to generate the plot



library(ggplot2);
p <- ggplot(data.frame(x=x,y=y,ystd=ystd,xstd=xstd,ywt=ywt,xwt=xwt),
aes(x,
y,
size=sqrt(xwt*ywt)));
p <- p + layer(geom='point');
p <- p + geom_errorbar(aes(ymax=y+ystd,
ymin=y-ystd),
colour='blue',
size=.01,
width=5);
p <- p + geom_errorbarh(aes(xmax=x+xstd,
xmin=x-xstd),
colour='red',
size=.01,
width=5);
p;

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[hadley wickham]

Try using height instead of width.
Hadley

--
Assistant Professor / Dobelman Family Junior Chair
Department of Statistics / Rice University
http://had.co.nz/

[MC]

I tried the using height but it still won't put the little
perpendicular ends for geom_errorbarh

> Department of Statistics / Rice Universityhttp://had.co.nz/

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[takahashi kohske]

Hi

If you specify height in aes, then it looks like to work.

p <- p + geom_errorbarh(aes(xmax=x+xstd,

xmin=x-xstd, height=5),
colour='red',
size=.1,
);

I don't know if this is bug, but probably this is undesired behavior
because width specified outside aes can work in geom_errorbar.


2010/4/24 MC <munawar....@googlemail.com>:

[hadley wickham]

Yup, it's a bug and it'll be fixed in the next version of ggplot2.
Hadley